Spectators watch as Aliy Zirkle leaves Unalakleet, Alaska, during the Iditarod Trail Sled Dog Race on Sunday, March 11, 2012. (AP Photo/Anchorage Daily News, Marc Lester)

Associated Press
Spectators watch as Aliy Zirkle leaves Unalakleet, Alaska, during the Iditarod Trail Sled Dog Race on Sunday, March 11, 2012. (AP Photo/Anchorage Daily News, Marc Lester)
Spectators watch as Aliy Zirkle leaves Unalakleet, Alaska, during the Iditarod Trail Sled Dog Race on Sunday, March 11, 2012. (AP Photo/Anchorage Daily News, Marc Lester)
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