How killing by remote control has changed the way we fight.

The lavish display and heavy drinking concealed the deadly serious North Caucasus politics of land, ethnicity, clan, and alliance.

In a cable brought to light by Wikileaks, the Ambassador to Russia describes a raucous three-day Dagestani wedding attended by Chechnya’s president Ramzan Kadyrov.

The son of Jim Nicholson, a former CIA agent convicted of espionage, follows in his father’s footsteps.

How a failed 1979 sci-fi project called Lord of Light became the centerpiece of a C.I.A. rescue plan for six Americans captured during the storming of the U.S. embassy in Tehran.

Edward Luttwak is a rare bird whose peripatetic life and work are the envy of academics and spies alike. …he published his first book, Coup d’État: A Practical Handbook, at the age of 26. Over the past 40 years, he has made provocative and often deeply original contributions to multiple academic fields, including military strategy, Roman history, Byzantine history, and economics.

On the FBI’s program to infiltrate Muslim communities in America.

The death of the journalist who exposed dark secrets about Islamic extremism in Pakistan’s military.

When a CIA operation in Pakistan went bad, leaving three men dead, the episode offered a rare glimpse inside a shadowy world of espionage. It also jeopardized America’s most critical outpost in the war against terrorism.

What IARPA’s project calls for is the deployment of spy resources against an entire language. Where you or I might parse a sentence, this project wants to parse, say, all the pages in Farsi on the Internet looking for hidden levers into the consciousness of a people.

How Thomas Drake, senior executive at the NSA, came to face some of the gravest charges that can be brought against an American citizen.

Did A.Q. Khan sell nuclear secrets on the black market? The fame had unbalanced him. He was subjected to a degree of public acclaim rarely seen in the West—an extreme close to idol worship, which made him hungry for more. Money seems never to have been his obsession, but it did play a role.

The unlikely ascent of A.Q. Khan, the scientist who gave Pakistan the Bomb, and his suspicious fall from grace.