The 26-ton Mark 6 nuclear bomb crashed through the bomb bay doors and fell from a height of at least 15,000 feet. Thankfully, the bomb was not armed with a nuclear device, which was stored ...

But decades later, in 1994, documents released from a 1966 Congressional testimony revealed that the Tybee Mark 15 was indeed an intact nuclear weapon. The Tybee bomb is hardly an isolated incident.