"Here's the fatal flaw in Nazi ideology" - person who studied and documented the lives and crimes of top Nazis. "Here's the fatal flaw in anti-Nazi ideology" - person who was raised by Nazis, named for a fictional Nazi ubermensch, which inspired pathological levels of inadequacy and i as the animating force of his life's purpose, and much like Hitler, sought to drown out the noise of his pathologies through drugs and the flattery of sycophants. Gee, that's a tough one.