Five non-profit immigration and criminal defense organizations have brought this suit to challenge a secret U.S.-El Salvador agreement that allows the indefinite detention of U.S. deportees, including asylum seekers and citizens, in brutal Salvadoran mega-prisons. This agreement, which plaintiffs argue bypasses Congress and violates U.S. and international law, involves covert U.S. funding to El Salvador for these incommunicado detentions. The lawsuit seeks to stop the U.S. government from outsourcing human rights abuses and argues that the State Department's deal violates the Administrative Procedure Act, exceeds executive authority, and endangers lives. It demands the agreement be publicized, declared illegal, and halted.