There's an urban legend that if POTUS is travelling overseas, he craps in a portable toilet, so that enemy spies can't analyze his shit. But last time I looked

There's an urban legend that if POTUS is travelling overseas, he craps in a portable toilet, so that enemy spies can't analyze his shit. But last time I looked there was only one website saying that this is the case. Nowadays I've read that Putin does this too, but I'm guessing that's an urban legend as well.