In a few moments you will be automatically forwarded to:
Albert Wohlstetter, "Nuclear Triggers and Safety Catches, the 'FSU' and the 'FSRs'" (1992), in Robert Zarate and Henry Sokolski, eds., Nuclear Heuristics: Selected Writing of Albert and Roberta Wohlstetter (Strategic Studies Institute, 2009), pp. 374-377. Originally in: Unpublished note, February 6, 1992, available from the Hoover Institution Archives, Albert and Roberta Wohlstetter Papers, Notes, Box 121, Folder 1. Courtesy of the Wohlstetter Estate.The PDF is nearly 3.0 megabytes, so give it a little time to load in your browser.