The godfather paradox (also known as the grandfather paradox) is a time travel theory which proposes that any alteration of past events would alter future events in some way, so the future in which the time traveller originated from wouldn't have come about. In this short story Stephen Dedman explores a scenario in which evidence from the future is sent back in time in an attempt to destroy the career of J. Edgar Hoover.
'Death is inevitable. But for a time traveler, inevitable can stretch into a long, long time.'
Source: Magazine blurb.