The U.S. Department of Justice has filed a lawsuit against Illinois Gov. JB Pritzker over new state laws aimed at protecting immigrants at courthouses, hospitals and day cares. Pritzker signed a set of laws earlier this month that ban civil arrests at and around courthouses statewide and require hospitals, day care centers and public universities to have procedures for handling civil immigration operations and protecting personal information. The Justice Department argued in the lawsuit filed Monday that the laws are unconstitutional and “threaten the safety of federal officers.” Pritzker previously acknowledged that the laws might be challenged in court.