WASHINGTON, DC - SEPTEMBER 30:  Secret Service Director Julia Pierson testifies to the House Oversight and Government Reform Committee on the White House perimeter breach at the Rayburn House Office Building on September 30, 2014 in Washington, DC. Pierson is giving an account of an incident involving a security breach at the White House after a man jumped the fence and was not subdued until after he had entered the mansion, deeper into the building than what it was previously reported.  (Photo by Chip Somodevilla/Getty Images)