From Wikipedia (read full report here)
The "Winter Soldier Investigation" was a media event sponsored by the Vietnam Veterans Against the War intended to publicize war crimes and atrocities by the United States Armed Forces and their allies in the Vietnam War. The VVAW challenged the morality and conduct of the war by showing the direct relationship between military policies and war crimes in Vietnam. The three-day gathering of 109 veterans and 16 civilians took place in Detroit, Michigan, from January 31-February 2, 1971. Discharged servicemen from each branch of military service, as well as civilian contractors, medical personnel and academics, all gave testimony about war crimes they had committed or witnessed during the years of 1963-1970.With the exception of Pacifica Radio, the event was not covered extensively outside Detroit. However, several journalists and film crews recorded the event,
The media might not have covered Winter Soldier, but we can. If you are a blogger, please post this testimony of Mike Prysner.