Ex-State Dept. adviser Stephen Kim sentenced in leak case

(Cliff Owen / AP)

Ann E. Marimow

Kim pleaded guilty in February to leaking top-secret information to Fox News reporter James Rosen.

Abu Ghaith trial tests how courts handle terror cases

Sari Horwitz

Trial shows the difference between federal courts and military commissions in terror cases.

KBR is asked to release internal corporate files

Scott Higham

The request by two House oversight committee members signals a probe of the government contractor.

Pollard waives parole hearing; Middle East talks stumble

Pollard waives parole hearing; Middle East talks stumble

Karen DeYoung and Anne Gearan

Expectations rise, then fall, about Israeli spy Jonathan Pollard’s release from prison.

Official: NSA did warrantless searches of Americans’ data

Official: NSA did warrantless searches of Americans’ data

Ellen Nakashima

James Clapper is the first senior intelligence official to acknowledge the surveillance practice.

For Congress and Pentagon, budget is a predictable battle

Walter Pincus

Military has facts about its operations, lawmakers have concerns about the needs of their constituencies

Senate report: CIA misled on interrogations

Senate report: CIA misled on interrogations

Greg Miller, Adam Goldman and Ellen Nakashima

Investigators conclude that the agency overstated the effectiveness of harsh tactics while hiding details and taking credit where it wasn’t due.

Obama calls on Russia to pull troops from Ukraine border

Obama calls on Russia to pull troops from Ukraine border

Ernesto Londoño

The move comes as U.S. officials express worry over size and makeup of Russian forces near Ukraine.

NSA Secrets

FILE - This June 6, 213 file photo shows the sign outside the National Security Agency (NSA) campus in Fort Meade, Md. The NSA has broken privacy rules or overstepped its legal authority thousands of times each year since Congress granted the intelligence agency broad new powers in 2008, The Washington Post reports. In one case, telephone calls from Washington were intercepted when the city's area code was confused with the dialing code for Egypt. (AP Photo/Patrick Semansky, File)

Revelations and reaction

The National Security Agency has been forced to respond to unprecedented disclosures about its surveillance programs. Those programs have been assailed as a violation of privacy rights by critics and defended as critical to U.S. national security by intelligence officials. Explore our coverage.

Defense chief: U.S. cyberwarfare force to grow significantly

Defense chief: U.S. cyberwarfare force to grow significantly

Ellen Nakashima

Chuck Hagel says that despite force’s growth, U.S. will practice “restraint” in any operations outside the U.S.

U.S. Air Force fires nine officers following cheating probe

U.S. Air Force fires nine officers following cheating probe

Ernesto Londoño

The Air Force secretary says there are “systemic issues in our missile community.”

White House pushes Congress on NSA data collection

White House pushes Congress on NSA data collection

Ellen Nakashima

The administration seeks legislation that would end the bulk gathering of Americans’ phone records.

Senators say administration lacks strategy for Syria

Senators say administration lacks strategy for Syria

Karen DeYoung

Democrats and Republicans on the Senate Foreign Relations Committee unleash a barrage of criticism.