The Justice Department has sued Oklahoma over a state law that seeks to impose a criminal penalties on those living in the state illegally. The law makes it a state crime punishable by up to two years in prison to live in the state without legal immigration status. The suit says the Oklahoma law violates the U.S. Constitution and seeks to have a federal court to declare it invalid and bar the state from enforcing it. Similar laws passed in Texas and Iowa are already facing challenges from the Justice Department. I'm Norman Hall.