S. Plous and P.G. Zimbardo (2004, September 10). Chronicle of Higher Education, pp. B9-B10.
* Reprinted in The General Psychologist, 40(1), pp. 1-2 (Spring, 2005); Readings in Deviant Behavior, 4th edition (2006), eds. A. Thio and T. Calhoun, Boston: Allyn & Bacon; and Crisis Times, April 2006, Volume 2, Issue 2, pp. 1-2.]