Seriously? (v. 2.0)
Okay, so the Bush Administration just explained to Chinese Premier Hu Jintao that in 2006 the US military accidentally sent Taiwan not the intended helicopter batteries but rather nuclear fuse triggers. Also, it took them eighteen months to notice.
The horrifying thing is that, while I think Hilary Clinton was just lying about her sniper adventures in Bosnia, I'm at least willing to entertain the possibility that the Bush administration really did manage to accidentally send nuclear weapons parts abroad.