In the wake of the atomic bombs dropped on Hiroshima and Nagasaki in 1945, the world has been acutely aware of the catastrophic potential of nuclear weapons. The consensus that such weapons should never be used again has held for nearly 80 years. However, recent events have brought the specter of nuclear conflict back into sharp focus. With Russia's invasion of Ukraine and President Vladimir Putin's willingness to breach the so-called nuclear taboo, the threat of nuclear war looms larger than it has in decades.