Scott Hughes

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Scott Hughes, 19, of Pittsburgh, Pa., hammers nails into place on the chute to the finish line of the Iditarod Trail Sled Dog Race on Sunday, March 9, 2014, in Nome, Alaska. Hughes, a student at the University of Pittsburgh, is helping the city prepare for the finish of the Iditarod as part of a church mission. (AP Photo/Mark Thiessen)