" As an illustration of how the funded experts preempt space in the media, table 1-4 describes the “experts” on terrorism and defense issues who appeared on the “McNeil-Lehrer News Hour” in the course of a year in the mid-1980s. We can see that, excluding journalists, a majority of the participants (54 percent) were present or former government officials, and that the next highest category (15.7 percent) was drawn from conservative think tanks. The largest number of appearances in the latter category was supplied by the Georgetown Center for Strategic and International Studies (CSIS), an organization funded by conservative foundations and corporations, and providing a revolving door between the State Department and CIA and a nominally private organization.93 On such issues as terrorism and the Bulgarian Connection, the CSIS has occupied space in the media that otherwise might have been filled by independent voices.94 "

― Edward S. Herman , Manufacturing Consent: The Political Economy of the Mass Media