One of the most highly publicized trials of its day, the Calley case emerged at a time when protests against the war were growing larger, louder, and more intense. Well aware of this, the Nixon administration sought to downplay the My Lai incident, which military officers in Vietnam had tried to cover up in order to protect their own careers and reputations. It might never have come to light had it not been for the efforts of Vietnam veteran Ron Ridenhour and journalist Seymour Hersh. Their investigations revealed the full extent of the My Lai tragedy, further inflamed the antiwar movement, and brought to trial Lieutenant William Calley.
Unfolding the Calley case step by step