A common theme in this year’s election is danger posed by a man like Donald Trump having control of a nuclear arsenal. Trump advocated further nuclear proliferation, failed to identify the three components of the nuclear triad, and  reportedly asked an adviser why the United States has nukes if it can’t use them. Hillary Clinton raises similar concerns since staking out out an aggressive stance toward Putin and his attempts at projecting Russian power. Some, including Trump, worry about a possible confrontation between Russia and the United States if Clinton is elected. People are rightfully...