As the threats exchanged between the leaders of the United States and North Korea escalate, President Donald Trump's rhetoric seems to draw from the "madman" playbook employed by President Richard Nixon during the Vietnam War. Trump should not expect the results to be any better, and they might be much worse. American leaders should be extremely wary of the risks of flagrant nuclear brinksmanship. The paradox of American nuclear power is that the nation's overwhelming arsenal is almost unusable. The damage created by a single nuclear strike would be so great, it would undermine most American strategic purposes.