The threat of nuclear annihilation is closer than at any time since the end of the Cold War as two heads of state use nuclear weapons as props in what looks like a fight between two adolescent boys.
On one side is a narcissistic bully, born to inherit great power and with credible reports that his personal life includes indulging in acts of sadism, whose policies in government are driven by a combination of xenophobia, ego and whim and who is threatening nuclear Armageddon if he doesn't get his way.
On the other side is North Korean dictator Kim Jong-un.