For two and a half years I have been haunted by a story that I pieced together from scattered reports. The story was disputed and denied when I first published it in 1975. But I now have overwhelming evidence from the secret files of the State Department, Justice Department, and Central Intelligence Agency. This is the most important human rights story of the decade. It is a stark, cruel story of mass slaughter in Cambodia under the Communist dictator Pol Pot.

I want you to remember that name, Pol Pot. It belongs in the hall of infamy alongside the names of Adolf Hitler and Josef Stalin. The Communists took over Cambodia in April of 1975. Pol Pot wanted to build a new Communist society.