Yeager, are you mixing medications? Just because you think someone is a poor president doesn't mean that every other aspect of their life must be cat crap too. Rickover was the ultimate navy hardass. He demanded perfection, and got it. He was a real jerk, too, but he's the reason we haven't lost a nuke sub since the Scorpion. Compare that with the Soviet/Russian safety record, and you might realize just how big a feat that is, and just how unforgiving the depths are.