A man takes a photograph with his cell phone of names on the walls of "Empty Sky Memorial" at Liberty State Park in Jersey City, New Jersey. The concrete and steel memoria pays tribute to the 746 citizens of New Jersey who lost their lives on Sept. 11. Justin Sullivan/Getty Images hide caption

itoggle caption Justin Sullivan/Getty Images

National Intelligence Director James Clapper leaves the Capitol after briefing members of Congress earlier this month. The Senate voted Friday to extend the FISA Amendments Act to 2017, granting federal agencies wide surveillance powers. J. Scott Applewhite/AP hide caption

itoggle caption J. Scott Applewhite/AP