A federal judge has ordered a temporary halt to construction of an immigration detention center — built in the middle of the Florida Everglades and dubbed “Alligator Alcatraz” — as attorneys argue whether it violates environmental laws. Under Thursday's order, the facility can continue to operate and hold detainees for U.S. Immigration and Customs Enforcement. Environmental groups and the Miccosukee Tribe have asked U.S. District Judge Kathleen Williams to issue a preliminary injunction to halt operations and further construction.