A lead dog licks four-time champion Martin Buser during the ceremonial start of the 2013 Iditarod Trail Sled Dog Race in Anchorage, Alaska on Saturday, March 2, 2013. The race, which will take mushers and dog teams about a thousand miles across the Alaska wilderness, starts Sunday, March 3, 2013, in Willow, Alaska. (AP Photo/Mark Thiessen)

Associated Press
A lead dog licks four-time champion Martin Buser during the ceremonial start of the 2013 Iditarod Trail Sled Dog Race in Anchorage, Alaska on Saturday, March 2, 2013. The race, which will take mushers and dog teams about a thousand miles across the Alaska wilderness, starts Sunday, March 3, 2013, in Willow, Alaska. (AP Photo/Mark Thiessen)
A lead dog licks four-time champion Martin Buser during the ceremonial start of the 2013 Iditarod Trail Sled Dog Race in Anchorage, Alaska on Saturday, March 2, 2013. The race, which will take mushers and dog teams about a thousand miles across the Alaska wilderness, starts Sunday, March 3, 2013, in Willow, Alaska. (AP Photo/Mark Thiessen)
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