Civil rights groups are suing U.S. Immigration and Customs Enforcement on behalf of four detainees held at Camp East Montana over "horrific" human rights abuses. The lawsuit naming the massive immigration detention center in El Paso was filed on Friday, May 29, by the American Civil Liberties Union of Texas, the ACLU, Texas Civil Rights Project, Human Rights Watch and the law firm Farella Braun + Martel LLP.