Oh, I watched Creature With the Atom Brain too, just for the hell of it. The description misled me; the German scientist who made the atomic zombies wasn't a Nazi at all. Rather, he was more the stock scientific genius who had intended to use his atomic zombies for good (although I don't think he really thought that one through) but allowed his work to be co-opted for evil for reasons that were never adequately explained. The villain he was working for was just an ordinary thug out for revenge, which wasn't too impressive; and the cop protagonists were grossly negligent in calling the bad guy's bluff and thus allowing hundreds to die in staged accidents, a decision that by all rights should've gotten them up before a board of inquiry at least. In short, it wasn't very good.