John Brennan at the White House on Monday (May 2, 2011). Carolyn Kaster/AP hide caption

itoggle caption Carolyn Kaster/AP

Homeland Security Secretary Janet Napolitano testified before the House Committee on Homeland Security today (Feb. 9, 2011). Mandel Ngan/AFP/Getty Images hide caption

itoggle caption Mandel Ngan/AFP/Getty Images