An unusual racketeering lawsuit filed by human rights lawyers accuses U.S. civilian contractors [Titan, CACI] at the Abu Ghraib prison in Iraq of conspiring to execute, rape and torture prisoners to boost corporate profits from military payments...Titan spokesman Wil Williams called the lawsuit "frivolous" and noted that the government has not formally accused any of its employees of abuse...CACI said the company "summarily rejects and denies the ill-informed, slanderous and malicious allegations of the lawsuit..."