If you love this planet.

This is a lecture delivered by Dr Helen Caldicott, an authoritative figure in the anti-nuclear movement, intercut with archive footage from America (eg. the US armed forces propaganda movie 'Jap Zero') about the decision to drop the nuclear bomb on Hiroshima (later in the video there is colour footage of the original Hiroshima survivors with severe burns 7 months after the explosion). Caldicott traces the development of the bombs used on Japan and compares them with the bombs now being produced. She outlines the immediate and long-range medical and environmental effects of detonating a single 20 megaton bomb. She also describes the planet in the aftermath of a nuclear war, contaminated by radiation and rampant with disease a world with few survivors. She urges the audience to act.