This is a short simple question. Two of my friends think that the US does (and at the same time think it was the US who sold nukes to Israel, which shows how clueless they are), I think that the US doesn't. So, has the US ever sold actual nuclear warheads? I know we sell the trident missiles without their warheads, but have we ever sold nuclear weapons? Also, if you could find actual proof that we don't, ie. Some sort of document forbidding the sale of nuclear warheads? I know the non proliferation treaty says we can't. But I mean something closer to home, like a physical law. I'd like to have some sort of evidence to show my two friends that they are mistaken.