From 1866 to 1876, more than three thousand free African Americans and their white allies were killed in cold blood by terrorist organizations in the South. Over the years this fact would not only be forgotten, but a series of exculpa...

In March 1941, after a year of unbroken and devastating U-boat onslaughts, the British War Cabinet decided to try a new strategy in the foundering naval campaign. To do so, they hired an intensely private, bohemian physicist who was a...

In March 1941, after a year of devastating U-boat attacks, the British War Cabinet turned to an intensely private, bohemian physicist named Patrick Blackett to turn the tide of the naval campaign. Though he is little remembered today,...

Queen Elizabeth I and England's First Spymaster Sir Francis Walsingham's official title was principal secretary to Queen Elizabeth I, but in fact this pious, tight-lipped Puritan was England's first spymaster. A ruthless, fiercely lo...

A sweeping, in-depth history of NSA, whose famous "cult of silence" has left the agency shrouded in mystery for decades   The National Security Agency was born out of the legendary codebreaking programs of World War II that...