Red Bull has unveiled the car it hopes Sebastian Vettel will steer to a fifth consecutive Formula One world championship, adapting to a major switch to six-cylinder engines.

Four-time defending world champion Vettel and new teammate Daniel Ricciardo pulled the tarp off the RB10 on Tuesday at the Jerez circuit, just before the start of preseason testing on Tuesday. They then posed for photos with team boss Christian Horner and chief designer Adrian Newey.

India's top competitor at the upcoming Winter Olympics in Sochi says not being able to compete under the national flag because of a political dispute will not harm his performance.

"In my heart and mind I'm competing for India," luge competitor Shiva Kesavan told The Associated Press in an email interview. "Every day I'm flooded with messages from Indians all over the world telling me they are supporting me. This is enough to push me forward."

Mohamed Salah, Chelsea's new signing from Basel, has been named best player of 2013 at the Swiss Football League awards.

The Egypt midfielder was also voted the fans' favorite player.

Documents leaked by former NSA contactor Edward Snowden suggest that spy agencies have a powerful ally in Angry Birds and a host of other apps installed on smartphones across the globe.

The documents, published Monday by The New York Times, the Guardian, and ProPublica, suggest that the mapping, gaming, and social networking apps which are a common feature of the world's estimated 1 billion smartphones can feed America's National Security Agency and Britain's GCHQ with huge amounts of personal data, including location information and details such as political affiliation or sexual orientation.

Google Glass is getting glasses.

Google is adding prescription frames and new styles of detachable sunglasses to its computerized, Internet-connected goggles known as Glass.

Quentin Tarantino sued the news and gossip website Gawker on Monday over a post that directed readers to a leaked copy of the Oscar-winning screenwriter's latest movie.

Tarantino's lawsuit accuses Gawker Media LLC of contributory copyright infringement for posting a link to the 146-page script for a planned film titled "The Hateful Eight" last week. A link to the script was posted on Gawker's Defamer blog and remained active Monday afternoon, despite demands from Tarantino's lawyers to take it down, the lawsuit states.

Scientists say two of the deadliest pandemics in history were caused by strains of the same plague and warn that new versions of the bacteria could spark future outbreaks.

Researchers found tiny bits of DNA in the teeth of two German victims killed by the Justinian plague about 1,500 years ago. With those fragments, they reconstructed the genome of the oldest bacteria known.

While he rotted away on Chelsea's substitutes' bench this season, Juan Mata could see his chances of playing for Spain at the World Cup slip away.

Mata had already been dropped from Spain's squad once this season and with the country blessed with so many playmakers, he was in real danger of being overlooked for the trip to Brazil to defend their title.

Seven years ago, Vladimir Putin traveled all the way to Guatemala to woo Olympic leaders with his grandiose vision: hosting the Winter Games in Russia's little-known Black Sea summer resort of Sochi.

Putin's personal pitch — delivered partly in English and French — did the trick as Sochi beat out bids from South Korea and Austria for the right to stage the 2014 Games on the so-called "Russian Riviera."

Ask a Brazilian how their national team will fare at the World Cup and chances are they will predict a run at least to the July 13 final, if not a win. Understandable optimism, given that Brazil will be playing at home and has won more World Cups (five) than any other football power.

But what if the host nation is booted out early? Very possible with defending champion Spain or 2010 runner-up the Netherlands looming for Brazil in the first knockout game and a tough path beyond that. Are Brazilians good losers? Would they sour the tournament mood in defeat? Or swallow their disappointment with a few morale-boosting caipirinha cocktails, crank up the samba and party on?