How do you keep nuclear secrets buried forever?
But also a great day out if you want to be reminded that you can be vaporised in a matter of seconds.
The trouble with talking about America's human experiments is that you sound like a conspiracy-spouting whackjob. So here are some officially-documented ones the US have carried out.
Especially not the UN or the Japanese government.
The theft of nuclear material is more common than you think.
Quietly, apologetically, fancy dressedly.