BBC:

John Kiriakou is accused of disclosing the names of agents who interrogated a suspected al-Qaeda financier, who was allegedly waterboarded 83 times.
Prosecutors say the probe started after lawyers for suspected terrorists filed a legal brief including details not provided by the government.
Mr Kiriakou, 47, will appear in court in Alexandria, Virginia, on Monday.
He is suspected of leaking classified information to reporters, who in turn provided information to the defence teams of the suspected terrorists.
During a recent interview with the FBI, Mr Kiriakou denied releasing the identity of classified agents, according to a sworn affidavit.
In particular, Mr Kiriakou was asked whether he released to the New York Times in 2008 the name of an officer who helped interrogation of the suspected al-Qaeda financier, Abu Zubaydah.
Mr Kiriakou responded: "Heavens no," according to the affidavit.
Read the book:
The Reluctant Spy: My Secret Life in the CIA's War on Terror by John Kiriakou and Michael Ruby
Overview:
Long before the water boarding controversy exploded in the media, one CIA agent had already gone public. In a groundbreaking 2007 interview with ABC News, John Kiriakou called water boarding torture--but admitted that it probably worked. This book, at once a confessional, an adventure story, and a chronicle of Kiriakou's life in the CIA, stands as an important, eloquent piece of testimony from a committed American patriot.