In this March 5, 2013 photo, Iditarod rookie Christine Roalofs arrives at 

In this March 5, 2013 photo, Iditarod rookie Christine Roalofs arrives at the Rohn checkpoint in Alaska during the Iditarod Trail Sled Dog Race.  (AP Photo/The Anchorage Daily News, Bill Roth)
Associated Press
In this March 5, 2013 photo, Iditarod rookie Christine Roalofs arrives at the Rohn checkpoint in Alaska during the Iditarod Trail Sled Dog Race. (AP Photo/The Anchorage Daily News, Bill Roth)
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