An Islamic State militant uses announces to residents of Taqba city that Tabqa air base has fallen to his group. Photograph: Reuters

Senior Republicans yesterday called for expanded air strikes against Islamic State militants in Iraq and for the first time in Syria, to destroy th(...)

Photos of Edward Snowden, a contractor at the US National Security Agency (NSA). Photograph: Bobby Yip/Files/Reuters

A bill to end the government’s bulk collection of telephone records got a unanimous go-ahead today from a second US congressional committee, advancing(...)

Armed men, believed to be Russian servicemen, take cover behind an armoured vehicle as they attempt to take over a military airbase in the Crimean town of Belbek near Sevastopol yesterday. Photograph: Shamil Zhumatov/Reuters

Russian forces gathering on the border with eastern Ukraine may be poised to invade, the White House warned today, as the government in Kiev said t(...)

J Christopher Stevens, in Benghazi, Libya, in 2011. Photograph: Bryan Denton/The New York Times

A boyish-looking US diplomat was meeting for the first time with the Islamist leaders of eastern Libya’s most formidable militias. It was September 9t(...)

Angela Merkel’s top foreign affairs and intelligence advisers will quiz officials in Washington today over the activities of US spies in Germany. Photograph: Sean Gallup/Getty Images

Angela Merkel’s top foreign affairs and intelligence advisers will quiz officials in Washington today over the activities of US spies in Germany, inc(...)

General Keith Alexander (L), director of the National Security Agency (NSA) testifies at a House Intelligence Committee hearing on Capitol Hill in Washington today.  Director of National Intelligence James Clapper watches on. Photograph: Jason Reed/Reuters.

The US National Security Agency director has defended the spy agency as acting within legal boundaries, amid a public uproar over the collection of Am(...)

Protests outside the US Capitol: various action groups gathered to protest against the National Security Agency’s abuses of law-abiding Americans. Photograph Win McNamee/Getty Images

US intelligence agencies say they checked the metadata of fewer than 300 telephone accounts in 2012 as they seek to play down privacy concerns raised (...)

A makeshift memorial for victims today near the site of the Boston Marathon bombings at the intersection of Boylston Street and Berkley Street. Photograph: Kevork Djansezian/Getty Images

US Republican lawmakers questioned today whether the FBI had fumbled the case of one of the two Boston Marathon bombing suspects, alleging it w(...)