From left, Secret Service Director Julia Pierson, Ralph Basham, a former Secret Service director, and Todd M. Keil, far right, a senior advisor with a private security firm, appear on Capitol Hill in Washington, Tuesday, Sept. 30, 2014, before the House Oversight Committee as it examines details surrounding a security breach at the White House when a man climbed over a fence, sprinted across the north lawn and dash deep into the executive mansion before finally being subdued. (AP Photo/J. Scott Applewhite)