Well according to wiki anyway:
http://en.wikipedia.org/wiki/USS_Iowa_turret_explosion
it was caused by a lovers quarrel.You'd think the anti-gays in the military folks would use this as an example.
Though it seems that congress thought that the whole gay thing was not true and the Navy later apologized
to the guys family I guess for saying that he was gay and then suicidal and for making him a scapegoat.
Here is what happens when nothing goes wrong: