"Between 1955 and 1975, the U.S. Army used 7,000 enlisted soldiers as human guinea pigs for experiments involving a wide array of biological and chemical warfare agents. These tests were conducted jointly by the U.S. Army Intelligence Board and the Chemical Warfare Laboratories at Edgewood Arsenal's research facility in Maryland. Approximately 3,500 of these soldiers were given doses of powerful mind-altering psychochemicals, including LSD, PCP, and BZ. These "volunteer" test subjects were not told which drugs they were given, and were not fully informed of the extreme physical and psychological effects these drugs would have on them. The images presented here are stills from documentary footage of these experiments filmed by the U.S. Army. If copyright becomes an issue on this video upload, it will be deleted immediately."