The Cold War was marked by hysteria over the potential for nuclear conflict. The world seemed to enter a new age when the Soviet Union collapsed. Small wars continued, but the famed nuclear doomsday clock finally moved backward.

Yet the possibility of nuclear war again is dominating international headlines. People have begun to share their parents' fear of nuclear warheads raining down upon American cities.

Unfortunately. U.S. President Donald Trump's decision to match North Korean leader Kim Jong Un threat for threat creates a serious risk of misjudgment and mistake. Peace is not advanced by the two nations' leaders behaving like participants in a cockfight.