The Project on Government Oversight has issued a report on reprisals and retaliation against whistleblowers at the U.S. Department of Energy. "Retaliation at DOE does not necessarily entail attempting to fire federal employees," it states. "In the majority of cases in the security area, DOE supervisors attempt to revoke the whistleblower's clearance on trumped-up charges. Then they remove them from any responsibility for oversight of security. On the other hand, contractors often lose their contracts, or their jobs, for blowing the whistle. ... Going back to the early 1980s, there has been a pattern of retaliation against federal and contractor employees who raise issues about security problems."