A federal appeals court has revived a lawsuit against CACI International Inc by four former Iraqi detainees who claimed the U.S. defense contractor's employees directed their torture at the Abu Ghraib prison near Baghdad. The 4th U.S. Circuit Court of Appeals in Richmond, Virginia, said the claims had sufficient ties to the United States to be heard in U.S. courts. Writing for a unanimous three-judge 4th Circuit panel, Circuit Judge Barbara Milano Keenan also said Congress has a "distinct interest" in not turning the United States into a "safe harbor" for torturers. The lawsuit accused CACI employees who conducted interrogation and other services at Abu Ghraib of directing or encouraging torture, in part to "soften up" detainees for questioning, while managers were accused of covering it up.