With the worlds attention focused on climate change and terrorism, we are in danger of taking our eyes off the nuclear threat. But rising tensions between Russia and NATO, proxy wars erupting in Syria and Ukraine, a nuclear-armed Pakistan, and stockpiles of aging weapons unsecured around the globe make a nuclear attack or a terrorist attack on a nuclear facility arguably the biggest threat facing humanity. Sleepwalking to Armageddon, pioneering antinuclear activist Helen Caldicott assembles the worlds leading nuclear scientists and thought leaders to assess the political and scientific dimensions of the threat of nuclear war today. Chapters address the size and distribution of the current global nuclear arsenal, the history and politics of nuclear weapons, the culture of modern-day weapons labs, the militarization of space, and the dangers of combining artificial intelligence with nuclear weaponry, as well as a status report on enriched uranium and a shocking analysis of spending on nuclear weapons over the years.