Tech. Sgt. Dana Vaughan (right) unhooks his rucksack with help from two Army ROTC cadets after pulling himself across a cold Vermont pond on Thursday, June 8, 2006. Sergeant Vaughan, a pararescueman from Nellis Air Force Base, Nev., is attending a two-week summer mountaineer training course at the Vermont National Guard's Army Mountain Warfare School in Jericho, Vt. (Air National Guard photo/Master Sgt. Rob Trubia)