Ramey Smyth's dogs prepare at the ceremonial start of the Iditarod Trail Sled Dog Race on Saturday, March 2, 2013, in Anchorage, Alaska. The competitive portion of the 1,000-mile race is scheduled to begin Sunday in Willow, Alaska. (AP Photo/Anchorage Daily News, Bob Hallinen)

Associated Press
Ramey Smyth's dogs prepare at the ceremonial start of the Iditarod Trail Sled Dog Race on Saturday, March 2, 2013, in Anchorage, Alaska. The competitive portion of the 1,000-mile race is scheduled to begin Sunday in Willow, Alaska. (AP Photo/Anchorage Daily News, Bob Hallinen)
Ramey Smyth's dogs prepare at the ceremonial start of the Iditarod Trail Sled Dog Race on Saturday, March 2, 2013, in Anchorage, Alaska. The competitive portion of the 1,000-mile race is scheduled to begin Sunday in Willow, Alaska. (AP Photo/Anchorage Daily News, Bob Hallinen)
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