Senate Intelligence Committee Chairwoman Dianne Feinstein alleged in March that the CIA violated federal law by searching computers used by her staff. On Thursday, the Justice Department declined to bring criminal charges against anyone at the CIA or the Senate panel. Jim Lo Scalzo/EPA/Landov hide caption

itoggle caption Jim Lo Scalzo/EPA/Landov

An unmanned U.S. Predator drone flies over Kandahar Air Field, southern Afghanistan, in 2010. A new report questions the U.S. policy of using armed drones abroad to carry out attacks on suspected terrorists. Kirsty Wigglesworth/AP hide caption

itoggle caption Kirsty Wigglesworth/AP