Forty years ago in the village of My Lai in South Vietnam, a massacre took place. The victims were innocent Vietnamese civilians – 504 mainly women, old men, children and babies. They were murdered, and in many cases, raped by US soldiers. This episode of the Vietnam War became known as 'The My Lai Massacre' and proved to be a turning point in the war. In the My Lai Tapes Robert Hodierne tells the story of what happened that day in interviews with the victims and the perpetraotors.