The individual responsible for one of the most significant leaks in US political history is Edward Snowden, a 29-year-old former technical assistant for the CIA and current employee of the defence contractor Booz Allen Hamilton.
Edward Snowden was interviewed over several days in Hong Kong by Glenn Greenwald and Ewen MacAskill.
Suleiman Abu Ghaith, one of the most high-profile al-Qaida militants sought by US intelligence services, was in US custody on Thursday following a secret operation involving Jordanian intelligence services, the CIA and the FBI.
The pressure on John Brennan, Barack Obama's nominee for CIA director and the architect of the White House strategy on drones, intensified on Wednesday amid revelations of a secret CIA drone base in Saudi Arabia.
President Obama made a flag-waving appeal to patriotism in nominating Chuck Hagel as his new defence secretary on Monday, as he highlighted Hagel's military valour to deflect his Republican critics.
The US military plans to send hundreds more spies overseas as part of an ambitious plan that will more than double the size of its espionage network, it was reported Sunday.
David Petraeus, the former CIA director, told congressional hearings on Friday that he had always known a terrorist group had been involved in an attack in Benghazi that left the US ambassador and three other Americans dead.
Former CIA director David Petraeus has denied passing classified documents to his lover, Paula Broadwell, as the FBI investigation focuses on how the general's biographer came to have restricted material on a personal computer and in her house.
Both Barack Obama and the Pentagon insisted on Tuesday that they were standing by the top US commander in Afghanistan, John Allen, after he became the latest general to find himself entangled in the widening Petraeus emails scandal.
Former CIA chief David Petraeus was said Monday to be "devastated" by the scandal-tainted collapse of his career, as those around his former lover warned of more to "come out" regarding the affair.