Science and technology has provided in communications new tools for Actors in the International System. Media in the field of psychological warfare are the best and most modern propaganda tool for the realization of the goals of Western Countries. After the Revolution, United State of America due to blocked channels formal diplomatic, has used propaganda tools, in particular against the Islamic Republic of Iran. USA use propaganda against Iran through VOA TV and Radio channels and Radio Farda. Now Voice ofAmericaTV, every day, 5 hours, produces diversified and effective programs witha focus onnews from Iran. Parasite program is the most interesting (according to its practitioners) its programs. This research uses the content analysis method for investigating the program.