U.S. Air Force Staff Sgt. Jonathon Hernas, with the 141st Civil Engineering Squadron, Washington Air National Guard, carefully maneuvers across debris and mud while searching for missing persons in Oso, Wash., March 28, 2014. U.S. Service members with the Washington National Guard partnered with state emergency management personnel and civilian volunteers to search for survivors following a mudslide that covered 1 square mile in a rural community 55 miles northeast of Seattle.