The lawsuit was filed in 2004 on behalf of Iraqi nationals who say they or their relatives had been tortured or mistreated while detained by the U.S. military at Abu Ghraib and other prisons in Iraq. The plaintiffs sued CACI International...which provided interrogators at Abu Ghraib, and L-3 Communications Holdings Inc.'s Titan unit [now L-3 Titan]...which provided interpreters to the U.S. military in Iraq. U.S. District Judge James Robertson dismissed the claims against Titan...But he ruled the lawsuit against CACI can go forward. He said CACI interrogators were subject to a dual chain of command involving company and military officials...CACI argued that it was acting on behalf of the military and cannot be held liable. CACI still may prevail on its arguments at trial, the judge said.