At the very least they may be involved in selling domestic spying on Americans to the American public. I shit you not....
http://www.truthout.org/docs_2005/111805N.shtml<snip>
John Walter Rendon Jr. rises at 3 a.m. each morning after six hours of sleep, turns on his Apple computer and begins ingesting information - overnight news reports, e-mail messages, foreign and domestic newspapers, and an assortment of government documents, many of them available only to those with the highest security clearance. According to Pentagon documents obtained by Rolling Stone, the Rendon Group is authorized "to research and analyze information classified up to Top Secret/SCI/SI/TK/G/HCS" - an extraordinarily high level of clearance granted to only a handful of defense contractors. "SCI" stands for Sensitive Compartmented Information, data classified higher than Top Secret. "SI" is Special Intelligence, very secret communications intercepted by the National Security Agency. "TK" refers to Talent/Keyhole, code names for imagery from reconnaissance aircraft and spy satellites. "G" stands for Gamma (communications intercepts from extremely sensitive sources) and "HCS" means Humint Control System (information from a very sensitive human source). Taken together, the acronyms indicate that Rendon enjoys access to the most secret information from all three forms of intelligence collection: eavesdropping, imaging satellites and human spies.
Rendon lives in a multimillion-dollar home in Washington's exclusive Kalorama neighborhood. A few doors down from Rendon is the home of former Defense Secretary Robert S. McNamara; just around the corner lives current Defense Secretary Donald Rumsfeld. At fifty-six, Rendon wears owlish glasses and combs his thick mane of silver-gray hair to the side, Kennedy-style. He heads to work each morning clad in a custom-made shirt with his monogram on the right cuff and a sharply tailored blue blazer that hangs loose around his bulky frame. By the time he pulls up to the Rendon Group's headquarters near Dupont Circle, he has already racked up a handsome fee for the morning's work: According to federal records, Rendon charges the CIA and the Pentagon $311.26 an hour for his services.
Rendon is one of the most influential of the private contractors in Washington who are increasingly taking over jobs long reserved for highly trained CIA employees. In recent years, spies-for-hire have begun to replace regional desk officers, who control clandestine operations around the world; watch officers at the agency's twenty-four-hour crisis center; analysts, who sift through reams of intelligence data; and even counterintelligence officers in the field, who oversee meetings between agents and their recruited spies. According to one senior administration official involved in intelligence-budget decisions, half of the CIA's work is now performed by private contractors - people completely unaccountable to Congress. Another senior budget official acknowledges privately that lawmakers have no idea how many rent-a-spies the CIA currently employs - or how much unchecked power they enjoy.