Switzerland's four-man bobsled team piloted by Ivo Rueegg starts a training run at the Vancouver 2010 Winter Olympics in Whistler, British Columbia, on Wednesday. Issei Kato/Reuters
Julia Mancuso of the US reacts in the finish area after her first run of the Women's Giant Slalom in Whistler, British Columbia. Earlier, Mancuso had to halt her first run after Lindsey Vonn crashed and was taken back up the course to start again. Sergey Ponomarev/AP
Children of foreign workers dressed in costume sit together during a party celebrating the upcoming Jewish holiday of Purim at a school in Tel Aviv, Israel, on Wednesday. Amir Cohen/Reuters
A clammer rakes for quahogs in the New Meadows Lake in Brunswick, Maine, on Feb. 23. Scientists are sounding a warning that the New England shellfish industry faces a potential threat of widespread red tide outbreaks this spring and summer. Researchers say indicators are in place suggesting a significant regional bloom of the toxic algae that causes red tide. Pat Wellenbach/AP
Treo, an Labrador from the Military Working Dogs, poses with his Dickin Medal, after it was presented by Princess Alexandra (not shown) at the Imperial War Museum in London, on Wednesday. The British Lab, whose bomb-sniffing exploits helped save lives in Afghanistan, was decorated for canine courage in a ceremony at London's Imperial War Museum on Wednesday. Treo joins a group of animals honored over the year with a special award known as the Dickin medal, including 32 pigeons, three horses, and a cat. Sang Tan/AP
Cows walk through a tunnel as they transport sacks of mined rocks containing gold to be processed from an illegal traditional gold mine in Tatelu village, Indonesia, on Feb. 22. A group of miners consisting of five people could mine 30-60 grams a day. Yusuf Ahmad/Reuters
President Barack Obama discusses the economy with Business Roundtable as they meet at the St. Regis Hotel in Washington on Wednesday. J. Scott Applewhite/AP
A baby fur seal is seen among rocks at Foca Island in Piura, Peru. Fur seals from the Galapagos Islands have established a full-fledged colony on the Pacific Coast of Peru, taking advantage of warmer seas, almost 900 miles from their normal habitat. Pilar Olivares/Reuters
Afghan girls look at US soldier Private First Class Danny Comley during a patrol in Arghandab valley, Kandahar province, Afghanistan, on Wednesday. Baz Ratner/Reuters
McLaren Formula One driver Lewis Hamilton and Barcelona soccer player Thierry Henry go head-to-head at a launch event for the Reebok ZigTech training shoe in Barcelona, Spain, on Feb. 24. Ian Walton/Reuters
Moscow deployed economic sanctions against Turkey in the latest volley between the two nations.
BySuzan Frazer and Vladimir Isachenkov, Associated Press
A tug-of-war over a Russian warplane downed by a Turkish fighter jet at the border with Syria escalated Thursday, with Moscow drafting a slew of economic sanctions against Turkey and the Turkish president defiantly declaring that his military will shoot down any new intruder.