I don’t know how I missed this story until now.
I also don’t know how I’ve never heard of Mars Bluff, SC, given that is is only 52 miles from where I grew up.

It seems that in 1958, a US Air Force B-47 dropped a nuclear bomb on Mars Bluff. Fortunately, the bomb did not contain the removable core of fissionable uranium and plutonium, which was stored in a containment area onboard the plane.
Crazy.
(via Mental Floss)