MasterCard MasterPass Augments Your Digital Shopping Experience

For MasterCard, the future of payments isn’t an either-or situation for traditional plastic or digital methods. MasterCard MasterPass aims to streamline your entire shopping experience while bridging the gap between real world and digital payments.

MasterPass is the next step in the company’s PayPass Wallet services, which brought NFC checkout systems to more than 700,000 merchants. The digital service, announced today at the Mobile World Congress in Barcelona, lets consumers use NFC, QR codes, tags or mobile devices to make purchases. You can use a regular payment card or an enabled mobile device (or even your desktop PC), and MasterPass can be used online and in brick-and-mortar stores.

MasterCard is essentially negating the need for you to whip out your credit card unless that’s how you want to pay at that moment — something akin to Amazon Mobile and Amazon Prime, but without the need to purchase the product through a third party.

“As you move into a world beyond cash, you move beyond plastic. Not necessarily without it, but beyond,” Ed McLaughlin, MasterCard’s chief emerging payments officer, told Wired. Their team has asked themselves, What does digital enable you to do better? How can shopping be made more exciting, how can merchants interact with consumers better? “It’s about the new capabilities digital gives you. It’s not a replacement for something that works awfully well.”

With MasterCard MasterPass, you could be browsing store shelves at the mall, try on a shirt and decide you want to buy it. You snap a photo of a QR code code with your phone, which takes you directly to a site where you can buy it online using MasterPass. You can grab it and go, showing sales associates your digital receipt before exiting the store.

Or say they don’t have the color shirt you wanted in stock in your size. You can pay in aisle or at the register, and choose to have it shipped to your house. (Your card info and address are stored in the cloud.)

“Every device is a commerce device,” McLaughlin said. “It’s about how to pull it all together.”

Consumers in the United States can sign up for MasterPass beginning this spring.

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‘Bloodless’ Lung Transplants for Jehovah’s Witnesses

Eric Kayne for The New York Times

SHARING HOME AND FAITH A Houston couple hosted Gene and Rebecca Tomczak, center, in October so she could get care nearby.

HOUSTON — Last April, after being told that only a transplant could save her from a fatal lung condition, Rebecca S. Tomczak began calling some of the top-ranked hospitals in the country.

She started with Emory University Hospital in Atlanta, just hours from her home near Augusta, Ga. Then she tried Duke and the University of Arkansas and Johns Hopkins. Each advised Ms. Tomczak, then 69, to look somewhere else.

The reason: Ms. Tomczak, who was baptized at age 12 as a Jehovah’s Witness, insisted for religious reasons that her transplant be performed without a blood transfusion. The Witnesses believe that Scripture prohibits the transfusion of blood, even one’s own, at the risk of forfeiting eternal life.

Given the complexities of lung transplantation, in which transfusions are routine, some doctors felt the procedure posed unacceptable dangers. Others could not get past the ethics of it all. With more than 1,600 desperately ill people waiting for a donated lung, was it appropriate to give one to a woman who might needlessly sacrifice her life and the organ along with it?

By the time Ms. Tomczak found Dr. Scott A. Scheinin at The Methodist Hospital in Houston last spring, he had long since made peace with such quandaries. Like a number of physicians, he had become persuaded by a growing body of research that transfusions often pose unnecessary risks and should be avoided when possible, even in complicated cases.

By cherry-picking patients with low odds of complications, Dr. Scheinin felt he could operate almost as safely without blood as with it. The way he saw it, patients declined lifesaving therapies all the time, for all manner of reasons, and it was not his place to deny care just because those reasons were sometimes religious or unconventional.

“At the end of the day,” he had resolved, “if you agree to take care of these patients, you agree to do it on their terms.”

Ms. Tomczak’s case — the 11th so-called bloodless lung transplant attempted at Methodist over three years — would become the latest test of an innovative approach that was developed to accommodate the unique beliefs of the world’s eight million Jehovah’s Witnesses but may soon become standard practice for all surgical patients.

Unlike other patients, Ms. Tomczak would have no backstop. Explicit in her understanding with Dr. Scheinin was that if something went terribly wrong, he would allow her to bleed to death. He had watched Witness patients die before, with a lifesaving elixir at hand.

Ms. Tomczak had dismissed the prospect of a transplant for most of the two years she had struggled with sarcoidosis, a progressive condition of unknown cause that leads to scarring in the lungs. The illness forced her to quit a part-time job with Nielsen, the market research firm.

Then in April, on a trip to the South Carolina coast, she found that she was too breathless to join her frolicking grandchildren on the beach. Tethered to an oxygen tank, she watched from the boardwalk, growing sad and angry and then determined to reclaim her health.

“I wanted to be around and be a part of their lives,” Ms. Tomczak recalled, dabbing at tears.

She knew there was danger in refusing to take blood. But she thought the greater peril would come from offending God.

“I know,” she said, “that if I did anything that violates Jehovah’s law, I would not make it into the new system, where he’s going to make earth into a paradise. I know there are risks. But I think I am covered.”

Cutting Risks, and Costs

The approach Dr. Scheinin would use — originally called “bloodless medicine” but later re-branded as “patient blood management” — has been around for decades. His mentor at Methodist, Dr. Denton A. Cooley, the renowned cardiac pioneer, performed heart surgery on hundreds of Witnesses starting in the late 1950s. The first bloodless lung transplant, at Johns Hopkins, was in 1996.

But nearly 17 years later, the degree of difficulty for such procedures remains so high that Dr. Scheinin and his team are among the very few willing to attempt them.

In 2009, after analyzing Methodist’s own data, Dr. Scheinin became convinced that if he selected patients carefully, he could perform lung transplants without transfusions. Hospital administrators resisted at first, knowing that even small numbers of deaths could bring scrutiny from federal regulators.

“My job is to push risk away,” said Dr. A. Osama Gaber, the hospital’s director of transplantation, “so I wasn’t really excited about it. But the numbers were very convincing.”

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Haruhiko Kuroda Expected to Be Named Head of Bank of Japan

TOKYO — A financial policy expert and harsh critic of the Bank of Japan’s efforts to combat deflation is set to be the government’s choice to take over the nation’s central bank.

Toru Hanai/Reuters

Haruhiko Kuroda is a harsh critic of the Bank of Japan’s track record on deflation.

The official, Haruhiko Kuroda, a veteran of global financial circles and current head of the Asian Development Bank, will be nominated as the bank’s governor to take over next month, according to a ruling party lawmaker with knowledge of those plans.

Prime Minister Shinzo Abe has instructed ruling party officials to start negotiating with opposition parties to clear the way for Mr. Kuroda’s appointment, which must be approved by a divided parliament, the lawmaker said.

“This is a critical time for Japan’s economy, and we must avoid, at all costs, a failure to gain parliamentary approval for this appointment,” NHK, the public broadcaster, quoted Mr. Abe as telling ruling party executives Monday morning.

With Mr. Kuroda at its helm, the bank could take much bolder steps to kick-start economic growth. Mr. Kuroda has publicly criticized the Bank of Japan for not going far enough to fight deflation, and has urged the bank to adopt inflation targets and to expand an asset-buying program to pump more cash into the Japanese economy.

Mr. Kuroda’s global experience — as vice minister for international affairs at Japan’s powerful Finance Ministry from 1999 to 2003, and as president of the Manila-based Asian Development Bank starting in 2005 — could also help Tokyo navigate foreign criticism that its monetary policies are intended to weaken the yen to give Japanese exporters a competitive edge.

The yen has weakened by over 10 percent in the last three months as Mr. Abe laid out his monetary agenda, pushing the outgoing central bank governor, Masaaki Shirakawa, to start taking a more aggressive monetary stance. But Mr. Abe had indicated that a change at the bank’s top ranks was needed to break with the bank’s cautious past. On Monday, the yen fell to a 33-month low.

Kikuo Iwata, a professor at Gakushuin University in Tokyo and another vocal critic of the central bank, is set to be tapped for one of its two deputy governor spots, according to the lawmaker. Mr. Iwata is the author of several books, including “Stop Deflation, Now” and “Is the Bank of Japan Really Trustworthy?”

Mr. Kuroda beat out a fellow former senior Finance Ministry official, Toshiro Muto, who had strong backing among both bureaucrats and local politicians but lacks the top-level global contacts. Mr. Muto was also viewed as being more cautious than Mr. Kuroda on monetary policy.

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Athletes cash in on California's workers' comp

SACRAMENTO — In his seven-year career with the Denver Broncos, running back Terrell Davis, a former Super Bowl Most Valuable Player, dazzled fans with his speed and elusiveness.

At the end of his rookie year in 1995, he signed a $6.8-million, five-year contract. Off the field he endorsed Campbell's soup. And when he hung up his cleats, he reported for the National Football League Network and appeared in movies and TV shows.

So it may surprise Californians to find out that in 2011, Davis got a $199,000 injury settlement from a California workers' compensation court for injuries related to football. This came despite the fact Davis was employed by a Colorado team and played just nine times in California during an 88-game career, according to the NFL.

Davis was compensated for the lifelong effects of multiple injuries to the head, arms, trunk, legs and general body, according to California workers' compensation records.

He is not alone.

Over the last three decades, California's workers' compensation system has awarded millions of dollars in benefits for job-related injuries to thousands of professional athletes. The vast majority worked for out-of-state teams; some played as little as one game in the Golden State.

All states allow professional athletes to claim workers' compensation payments for specific job-related injuries — such as a busted knee, torn tendon or ruptured spinal disc — that happened within their borders. But California is one of the few that provides additional payments for the cumulative effect of injuries that occur over years of playing.

A growing roster of athletes are using this provision in California law to claim benefits. Since the early 1980s, an estimated $747 million has been paid out to about 4,500 players, according to an August study commissioned by major professional sports leagues. California taxpayers are not on the hook for these payments. Workers' compensation is an employer-funded program.

Now a major battle is brewing in Sacramento to make out-of-state players ineligible for these benefits, which are paid by the leagues and their insurers. They have hired consultants and lobbyists and expect to unveil legislation next week that would halt the practice.

"The system is completely out of whack right now," said Jeff Gewirtz, vice president of the Brooklyn Nets — formerly the New Jersey Nets — of the National Basketball Assn.

Major retired stars who scored six-figure California workers' compensation benefits include Moses Malone, a three-time NBA most valuable player with the Houston Rockets, Philadelphia 76ers and other teams. He was awarded $155,000. Pro Football Hall of Fame wide receiver Michael Irvin, formerly with the Dallas Cowboys, received $249,000. The benefits usually are calculated as lump-sum payments but sometimes are accompanied by open-ended agreements to provide lifetime medical services.

Players, their lawyers and their unions plan to mount a political offensive to protect these payouts.

Although the monster salaries of players such as Los Angeles Lakers guard Kobe Bryant and Denver Broncos quarterback Peyton Manning make headlines, few players bring in that kind of money. Most have very short careers. And some, particularly football players, end up with costly, debilitating injuries that haunt them for a lifetime but aren't sufficiently covered by league disability benefits.

Retired pros increasingly are turning to California, not only because of its cumulative benefits but also because there's a longer window to file a claim. The statute of limitations in some states expires in as little as a year or two.

"California is a last resort for a lot of these guys because they've already been cut off in the other states," said Mel Owens, a former Los Angeles Rams linebacker-turned-workers' compensation lawyer who has represented a number of ex-players.

To understand how it works, consider the career of Ernie Conwell. A former tight end for the St. Louis Rams and New Orleans Saints, he was paid $1.6 million for his last season in 2006.

Conwell said that during his 11-year career, he underwent about 18 surgeries, including 11 knee operations. Now 40, he works for the NFL players union and lives in Nashville.

Hobbled by injuries, he filed for workers' compensation in Louisiana and got $181,000 in benefits to cover his last, career-ending knee surgery in 2006, according to the Saints. The team said it also provided $195,000 in injury-related benefits as part of a collective-bargaining agreement with the players union.

But such workers' compensation benefits paid by Louisiana cover only specific injuries. So, to deal with what he expects to be the costs of ongoing health problems that he said affect his arms, legs, muscles, bones and head, Conwell filed for compensation in California and won.

Even though he played only about 20 times in the state over his professional career, he received a $160,000 award from a California workers' compensation judge plus future medical benefits, according to his lawyer. The Saints are appealing the judgment.

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That Syncing Feeling

“Smart, or stylish?” That’s the question facing casual watch aficionados looking for a new, high-tech addition to their collection.

On one hand (er, wrist), you’ve got the Pebble and other smartwatch upstarts, which come with built-in smartphone connectivity, customizable screens, and burgeoning developer communities eager to feed their app ecosystems. They also, by and large, look like uninspired pieces of mass-produced Chinese plastic, and that’s because they are.

On the “stylish” end of the spectrum is … not much. Except this: Citizen’s Eco-Drive Proximity.

The Citizen learns the current time from your phone, and the watch’s hands spin around to the correct positions.

By all outward appearances, the Proximity looks like any another chronograph in a sea of handsome mechanical watches. It has all the features you’d expect, including a 24-hour dial, day and date, perpetual calendar and second time zone. But housed within its slightly oversized 46mm case is a Bluetooth 4.0 radio, so it’s capable of passing data over the new low-energy connectivity standard appearing in newer smartphones, including the iPhone 5 and 4S. And for now, the Promixity is only compatible with those Apple devices.

Initial pairing is relatively easy. After downloading Citizen’s notably low-rent iOS app, you can link the watch to your phone with a few turns and clicks on the crown.

The gee-whiz feature is the automatic time sync that takes place whenever you land in a different time zone. Once connected, the Citizen learns the current time from your phone, and the watch’s hands spin around to the correct positions — a welcome bit of easy magic, considering the initial setup is a tedious finger dance.

The watch can also notify you of incoming communications. Once you’ve configured the mail client (it only supports IMAP accounts), you’ll get notified whenever you get a new e-mail — there’s a slight vibration and the second hand sweeps over to the “mail” tab at the 10-o’clock position. If a phone call comes in, the second hand moves to the 11-o’clock marker. If the Bluetooth connection gets lost because the watch or phone is outside the 30-foot range, you get another vibration and the second hand moves to the “LL” indicator. And really, that’s the extent of the functionality around notifications.

But notable in its absence is the notification I’d like the most: text message alerts. And it’s not something Citizen will soon be rectifying because the dials and hardware aren’t upgradable.

I also experienced frequent connection losses, particularly when attending a press conference with scads of Mi-Fis and tethered smartphones around me. This caused dozens of jarring vibrations both on my wrist and in my pocket, followed by a raft of push notifications on my phone informing me of the issue. Reconnecting is easy (and generally happens automatically), but the lack of stability in certain environments matched with the limited capabilities of the notifications had me forgetting to reconnect and not even worrying about it later on.

But actually, I’m OK with that. I still like the fact that it never needs charging. Even though there aren’t any solar cells visible on the dial, the watch does have them. They’re hidden away beneath the dial, and yet they still work perfectly. And even when its flagship connectivity features aren’t behaving, it’s still a damn handsome watch. It feels solid, and it looks good at the office, out to dinner, or on the weekend — something very few other “smart” watches on the market can claim.

However, those things can be said of almost all of Citizen’s EcoDrive watches. The big distinguishing feature here is the Bluetooth syncing and notifications, and they just don’t work that well.

WIRED A smart watch you won’t be embarrassed to wear. Charges using light. Combines classic styling with cutting-edge connectivity. Subtle notifications keep you informed without dominating your attention.

TIRED Loses Bluetooth connection with disturbing frequency. Limited notification abilities. No text message alerts. Janky iPhone app.

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Oscar show promises music, megastars and James Bond

LOS ANGELES (Reuters) – Bigger stars, more music and edgier comedy are on the menu for Sunday’s Oscar ceremony, when the most coveted awards in the movie industry are handed out during a glittering Academy Awards show.

Producers of the three-hour Oscar telecast at Hollywood’s Dolby Theatre are promising a faster-paced show and more face time with first-time host Seth MacFarlane, while honoring the best films not just of 2012 but also of decades past.

“We have more performances on that stage than we can ever remember there being in the past. And we are not trotting people out just to sing and dance. Every single thing you see on that stage will be related to movies,” said Craig Zadan, who is producing the Oscar telecast for the first time with Neil Meron.

“We have devised ways that we are hoping will make the pacing faster … That doesn’t mean we are not going to give as much weight to honoring the winners, but there has been a lot of dead space in the show (in the past),” Zadan told Reuters.

Steven Spielberg’s presidential movie “Lincoln” heads into Sunday’s ceremony with a leading 12 nominations, followed by Ang Lee’s shipwreck tale “Life of Pi” with 11, French Revolutionary musical “Les Miserables” and romantic comedy “Silver Linings Playbook” with eight apiece, and Iran hostage drama “Argo” with seven.

All five are competing for Best Picture, the top prize, in a tight race that has narrowed in recent weeks to “Lincoln” or “Argo” and will be the last to be announced on Sunday night.

JAMES BOND AND MUSICALS

Before then, Zadan and Meron have assembled an array of performers and presenters that almost outshine the actors, actresses, directors and screenwriters who have been waiting since early January to see if they will go home with a golden Oscar.

They include A-listers Barbra Streisand, Jack Nicholson, Jane Fonda, John Travolta and Jennifer Aniston, along with younger stars Daniel Radcliffe, Kristen Stewart and Joseph Gordon-Levitt.

But don’t count on seeing all six surviving James Bond actors on stage for the planned special 50th anniversary tribute to the British secret agent’s illustrious movie career.

“We have a tribute to James Bond which is really exciting and thrilling, but it never included the concept of six guys coming out and standing there awkwardly on the stage,” Zadan said, quashing speculation that Daniel Craig, Timothy Dalton, Pierce Brosnan, Roger Moore, Sean Connery and George Lazenby would unite on Sunday.

The nominations for “Les Miserables,” where Anne Hathaway is tipped to win Best Supporting Actress, has opened the door to a celebration of the last decade of musicals.

The tribute will feature Hathaway, her Oscar-nominated co-star Hugh Jackman, as well as “Dreamgirls” and “Chicago” Oscar winners Jennifer Hudson and Catherine Zeta-Jones.

MacFarlane, the creator of provocative animated TV series “Family Guy,” will also be showing off his vocal skills, and spending more time on stage than has been traditional for Oscar hosts.

“What happens a lot in the past is that the host comes on, talks for a lot, and then disappears for half an hour. We are not doing that. We are having Seth be there a lot, out there introducing things, and that allows for more pacing and comedy,” said Zadan.

But there will be plenty of room for the unpredictable – and that’s not even counting possible upsets when the winners’ envelopes are unsealed.

“We love the fact that people don’t quite know what they’re going to get with Seth as a host,” said Meron. “We live for the moments that happen on stage. Those are some of the great Oscar moments of the past.”

The Oscar winners are chosen by some 5,800 movie industry professionals who are members of the Academy of Motion Picture Arts and Sciences.

The Academy Awards ceremony, in its 85th year, will be broadcast live on ABC television in the United States, and to more than 225 other nations.

(Reporting by Jill Serjeant editing by Jackie Frank)

Movies News Headlines – Yahoo! News

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Major Banks Aid in Payday Loans Banned by States

Major banks have quickly become behind-the-scenes allies of Internet-based payday lenders that offer short-term loans with interest rates sometimes exceeding 500 percent.

With 15 states banning payday loans, a growing number of the lenders have set up online operations in more hospitable states or far-flung locales like Belize, Malta and the West Indies to more easily evade statewide caps on interest rates.

While the banks, which include giants like JPMorgan Chase, Bank of America and Wells Fargo, do not make the loans, they are a critical link for the lenders, enabling the lenders to withdraw payments automatically from borrowers’ bank accounts, even in states where the loans are banned entirely. In some cases, the banks allow lenders to tap checking accounts even after the customers have begged them to stop the withdrawals.

“Without the assistance of the banks in processing and sending electronic funds, these lenders simply couldn’t operate,” said Josh Zinner, co-director of the Neighborhood Economic Development Advocacy Project, which works with community groups in New York.

The banking industry says it is simply serving customers who have authorized the lenders to withdraw money from their accounts. “The industry is not in a position to monitor customer accounts to see where their payments are going,” said Virginia O’Neill, senior counsel with the American Bankers Association.

But state and federal officials are taking aim at the banks’ role at a time when authorities are increasing their efforts to clamp down on payday lending and its practice of providing quick money to borrowers who need cash.

The Federal Deposit Insurance Corporation and the Consumer Financial Protection Bureau are examining banks’ roles in the online loans, according to several people with direct knowledge of the matter. Benjamin M. Lawsky, who heads New York State’s Department of Financial Services, is investigating how banks enable the online lenders to skirt New York law and make loans to residents of the state, where interest rates are capped at 25 percent.

For the banks, it can be a lucrative partnership. At first blush, processing automatic withdrawals hardly seems like a source of profit. But many customers are already on shaky financial footing. The withdrawals often set off a cascade of fees from problems like overdrafts. Roughly 27 percent of payday loan borrowers say that the loans caused them to overdraw their accounts, according to a report released this month by the Pew Charitable Trusts. That fee income is coveted, given that financial regulations limiting fees on debit and credit cards have cost banks billions of dollars.

Some state and federal authorities say the banks’ role in enabling the lenders has frustrated government efforts to shield people from predatory loans — an issue that gained urgency after reckless mortgage lending helped precipitate the 2008 financial crisis.

Lawmakers, led by Senator Jeff Merkley, Democrat of Oregon, introduced a bill in July aimed at reining in the lenders, in part, by forcing them to abide by the laws of the state where the borrower lives, rather than where the lender is. The legislation, pending in Congress, would also allow borrowers to cancel automatic withdrawals more easily. “Technology has taken a lot of these scams online, and it’s time to crack down,” Mr. Merkley said in a statement when the bill was introduced.

While the loans are simple to obtain — some online lenders promise approval in minutes with no credit check — they are tough to get rid of. Customers who want to repay their loan in full typically must contact the online lender at least three days before the next withdrawal. Otherwise, the lender automatically renews the loans at least monthly and withdraws only the interest owed. Under federal law, customers are allowed to stop authorized withdrawals from their account. Still, some borrowers say their banks do not heed requests to stop the loans.

Ivy Brodsky, 37, thought she had figured out a way to stop six payday lenders from taking money from her account when she visited her Chase branch in Brighton Beach in Brooklyn in March to close it. But Chase kept the account open and between April and May, the six Internet lenders tried to withdraw money from Ms. Brodsky’s account 55 times, according to bank records reviewed by The New York Times. Chase charged her $1,523 in fees — a combination of 44 insufficient fund fees, extended overdraft fees and service fees.

For Subrina Baptiste, 33, an educational assistant in Brooklyn, the overdraft fees levied by Chase cannibalized her child support income. She said she applied for a $400 loan from Loanshoponline.com and a $700 loan from Advancemetoday.com in 2011. The loans, with annual interest rates of 730 percent and 584 percent respectively, skirt New York law.

Ms. Baptiste said she asked Chase to revoke the automatic withdrawals in October 2011, but was told that she had to ask the lenders instead. In one month, her bank records show, the lenders tried to take money from her account at least six times. Chase charged her $812 in fees and deducted over $600 from her child-support payments to cover them.

“I don’t understand why my own bank just wouldn’t listen to me,” Ms. Baptiste said, adding that Chase ultimately closed her account last January, three months after she asked.

A spokeswoman for Bank of America said the bank always honored requests to stop automatic withdrawals. Wells Fargo declined to comment. Kristin Lemkau, a spokeswoman for Chase, said: “We are working with the customers to resolve these cases.” Online lenders say they work to abide by state laws.

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Gunfire and deadly crash rattle the Las Vegas Strip

LAS VEGAS — A spectacular predawn crash on the Strip — triggered when bullets fired from a black Range Rover peppered a Maserati — hit this resort city right between the eyes. In the end, three people were dead and a major intersection under lockdown during a three-state manhunt for the shooters, leaving even casino veterans used to the extraordinary scratching their heads.

The mayhem was sparked, witnesses told police, by a quarrel early Thursday at a hotel valet stand.

The two vehicles left the Aria resort hotel and were heading north on Las Vegas Boulevard at 4:20 a.m., an hour when the casino marquees shine brightly but the gambling thoroughfare is largely empty. At Harmon Avenue, occupants inside the Range Rover opened fire on the Maserati, police said.

The silver-gray sports car, which was struck several times, sped into the intersection at Flamingo Road, ramming a Yellow cab. The taxi exploded, killing the driver and a passenger. Four other vehicles in the intersection were also involved in the crash and explosion, but officers offered no details.

"Omg Omg Omg that car just blew up!" one witness tweeted shortly after the crash, posting a photo of the wreckage. "God Bless their Souls! Omg!"

The driver of the Maserati died later at a hospital, police said. A passenger in the vehicle received minor injuries and was being interviewed by investigators. At least three others were also injured.

Police in Nevada, California, Arizona and Utah were on alert for the distinctive black Range Rover SUV, described as having dark-tinted windows, black rims and out-of-state paper dealer plates.

"We are going to pursue these individuals and prosecute them," Clark County Sheriff Doug Gillespie said at an afternoon news conference. "This act was totally unacceptable. It's not just tragic but unnecessary — the level of violence we see here in Las Vegas and across America."

Authorities had not publicly identified the dead. But a Las Vegas television station late Thursday identified the taxi driver as Michael Boldon, 62, who the station said had recently moved here from Michigan to care for his 93-year-old mother.

The victim's son, who drives a limousine, told Fox News 5 that he last talked with his father after 3 a.m., and later called his cellphone shortly after the crash to warn him to avoid the Strip. But there was no answer.

The station also identified the driver of the Maserati as Ken Cherry, a rap artist from Oakland who also is known as "Kenny Clutch." The station quoted family members identifying Cherry as the driver. An Internet video of a Cherry song called "Stay Schemin" shows two men in a vehicle on the Strip.

Police had more questions than answers.

"It began with a dispute at a nearby hotel and spilled onto the streets," said Capt. Chris Jones of the Las Vegas Police Robbery and Homicide Division.

The morning's events threw the Strip into disarray all day. The gambling boulevard's busiest and best-known intersection was cordoned off by yellow police tape until nightfall, keeping traffic and curious pedestrians away from the carnage. Even skywalks were blocked off.

While slot machines beeped and card games continued inside casinos around the accident scene — including the Bellagio, Caesars Palace and Paris Las Vegas — hotel bell captains were fielding questions from tourists who had awakened to news of the crash and the Strip shutdown. The alleys and side streets between nearby hotels were clogged with pedestrians who inched along on narrow sidewalks, past delivery doors, many making their own paths between the landscaped bushes and palm trees.

Even casino industry workers were thrown into turmoil. Hotel maids and dealers who finished their midnight shifts after dawn were left without bus service home. "I'm stranded," said Tiruselam Kefyalew, 25, a maid. "What a day to leave my cellphone at home."

Limousine drivers who normally prowl the city's gambling core improvised detours. Some said the police blockade would cost them $500 or more in lost business and tips.

"Most people understand, but you have your complainers," said Jim DeSanto, a limo driver who waited for fares outside Bally's casino. "Those people will complain, even when everything is perfect."

Well after noon, guests peered out nearby hotel windows and others leaned into the street to glimpse the crime scene.

"Hey, honey, it must have happened right here," one man told his wife as they left Caesars around noon. The tourist, who would only say that he had arrived from Tampa, Fla., the previous evening, had looked out his hotel window at 4:30 to see a vehicle in flames.

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Asteroid Impact Craters on Earth as Seen From Space

Asteroid impact craters are among the most interesting geological structures on any planet. Many other planets and moons in our solar system, including our own moon, are pock-marked with loads of craters. But because Earth has a protective atmosphere and is geologically active — with plate tectonics and volcanic eruptions, mostly relatively young oceanic crust, and harsh weathering from wind and water — impact structures don’t last long and can be tough to come by.

But on a few old pieces of continent, especially in arid deserts, the marks of asteroids have been preserved. One well-known example is our own Barringer crater, also known as Meteor Crater, in Arizona. The images here show some of the biggest, oldest and most interesting impact craters on the planet.

Aorounga crater, pictured above and below, is one of the best preserved impact craters on Earth, thanks in part to its location in the Sahara Desert in Chad. The 10 mile-wide crater is probably around 350 million years old. The stripes are alternating rock ridges and sand layers, known as yardangs, caused by persistent unidirectional wind. The image above was taken by astronauts in the International Space Station in July. The radar image below, taken from the space shuttle in 1994, reveals that Aorounga may be one of two or three craters.

Images: NASA

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Drone Pilots Found to Get Stress Disorders Much as Those in Combat Do

U.S. Air Force/Master Sgt. Steve Horton

Capt. Richard Koll, left, and Airman First Class Mike Eulo monitored a drone aircraft after launching it in Iraq.

The study affirms a growing body of research finding health hazards even for those piloting machines from bases far from actual combat zones.

“Though it might be thousands of miles from the battlefield, this work still involves tough stressors and has tough consequences for those crews,” said Peter W. Singer, a scholar at the Brookings Institution who has written extensively about drones. He was not involved in the new research.

That study, by the Armed Forces Health Surveillance Center, which analyzes health trends among military personnel, did not try to explain the sources of mental health problems among drone pilots.

But Air Force officials and independent experts have suggested several potential causes, among them witnessing combat violence on live video feeds, working in isolation or under inflexible shift hours, juggling the simultaneous demands of home life with combat operations and dealing with intense stress because of crew shortages.

“Remotely piloted aircraft pilots may stare at the same piece of ground for days,” said Jean Lin Otto, an epidemiologist who was a co-author of the study. “They witness the carnage. Manned aircraft pilots don’t do that. They get out of there as soon as possible.”

Dr. Otto said she had begun the study expecting that drone pilots would actually have a higher rate of mental health problems because of the unique pressures of their job.

Since 2008, the number of pilots of remotely piloted aircraft — the Air Force’s preferred term for drones — has grown fourfold, to nearly 1,300. The Air Force is now training more pilots for its drones than for its fighter jets and bombers combined. And by 2015, it expects to have more drone pilots than bomber pilots, although fighter pilots will remain a larger group.

Those figures do not include drones operated by the C.I.A. in counterterrorism operations over Pakistan, Yemen and other countries.

The Pentagon has begun taking steps to keep pace with the rapid expansion of drone operations. It recently created a new medal to honor troops involved in both drone warfare and cyberwarfare. And the Air Force has expanded access to chaplains and therapists for drone operators, said Col. William M. Tart, who commanded remotely piloted aircraft crews at Creech Air Force Base in Nevada.

The Air Force has also conducted research into the health issues of drone crew members. In a 2011 survey of nearly 840 drone operators, it found that 46 percent of Reaper and Predator pilots, and 48 percent of Global Hawk sensor operators, reported “high operational stress.” Those crews cited long hours and frequent shift changes as major causes.

That study found the stress among drone operators to be much higher than that reported by Air Force members in logistics or support jobs. But it did not compare the stress levels of the drone operators with those of traditional pilots.

The new study looked at the electronic health records of 709 drone pilots and 5,256 manned aircraft pilots between October 2003 and December 2011. Those records included information about clinical diagnoses by medical professionals and not just self-reported symptoms.

After analyzing diagnosis and treatment records, the researchers initially found that the drone pilots had higher incidence rates for 12 conditions, including anxiety disorder, depressive disorder, post-traumatic stress disorder, substance abuse and suicidal ideation.

But after the data were adjusted for age, number of deployments, time in service and history of previous mental health problems, the rates were similar, said Dr. Otto, who was scheduled to present her findings in Arizona on Saturday at a conference of the American College of Preventive Medicine.

The study also found that the incidence rates of mental heath problems among drone pilots spiked in 2009. Dr. Otto speculated that the increase might have been the result of intense pressure on pilots during the Iraq surge in the preceding years.

The study found that pilots of both manned and unmanned aircraft had lower rates of mental health problems than other Air Force personnel. But Dr. Otto conceded that her study might underestimate problems among both manned and unmanned aircraft pilots, who may feel pressure not to report mental health symptoms to doctors out of fears that they will be grounded.

She said she planned to conduct two follow-up studies: one that tries to compensate for possible underreporting of mental health problems by pilots and another that analyzes mental health issues among sensor operators, who control drone cameras while sitting next to the pilots.

“The increasing use of remotely piloted aircraft for war fighting as well as humanitarian relief should prompt increased surveillance,” she said.

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