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...