A "Broken Arrow" is the loss of control a functional nuclear weapon. Being misplaced also counts as a "Broken Arrow" incident, as was the case with some nuclear missiles being lost in transit only to be found a few days later at the wrong base. They were mistakenly kept loaded on an aircraft.
There's actually a shocking number of these weapons that are completely unaccounted for. They're presumed to be at the bottom of the ocean.
During the 1960s the US had this completely insane program whereby bombers would be in the air at all times with fully operable nuclear weapons. Not surprisingly there was a number of malfunctions on these aircraft that lead to atomic payloads being dumped so the crew could safely land, though I honestly have no idea where a "safe" spot to ditch a thermonuclear weapon is, armed or not.
There's actually a shocking number of these weapons that are completely unaccounted for. They're presumed to be at the bottom of the ocean.
During the 1960s the US had this completely insane program whereby bombers would be in the air at all times with fully operable nuclear weapons. Not surprisingly there was a number of malfunctions on these aircraft that lead to atomic payloads being dumped so the crew could safely land, though I honestly have no idea where a "safe" spot to ditch a thermonuclear weapon is, armed or not.