Article Photos: Oklahoma tornadoes: OU's Merv Johnson 'was extremely lucky, but I wasn't very smart' with weather decisions 98/505

Highway Patrol troopers Randall Milan, left, and Gabe Leach work perimeter security on the north side of the tornado devestated part of Moore, OK, Thursday, May 23, 2013,  Photo by Paul Hellstern, The Oklahoman