In response to the threats during the Cold War, the CIA took cautious first steps to determine whether the claims of psychics could be verified under laboratory conditions, and to see if the obvious intelligence value could be realized. Thus began a program now known as Star Gate—the largest funded research program in the history of psi research. Supported mainly by the DIA and USAMRDC, this formerly classified, $20M program proved successful enough to outlive the Cold War and beyond (1972–1995). The Archives include all available documents generated by SRI International and Science Applications International Corporation and the activity provided by Government officials. Psychokinesis (PK) is an atypical ability to affect the physical or biological world only through mental means, i.e., mind over matter. A belief in this phenomenon has been part of the human condition since ancient times. The U.S. Government’s interest in PK was, in part, based upon intelligence reports from the former Soviet Union that made fantastical claims about its existence and its military applications. The lure of possible defensive or offensive weapons, or thought-controlled switches drove the Star Gate funding for PK. This volume describes PK on random number generators and a few, but expensive, experiments searching for large scale changes in biological and physical systems resulting from PK.