A coalition of civil rights groups has filed what they’re calling the most comprehensive federal lawsuit challenging Arizona’s recent anti-immigrant law since it was approved last month. Under the law, police officers are ordered to stop and interrogate anyone they suspect is an undocumented immigrant. On Monday, the ACLU, the NAACP, the National Immigration Law Center and several other groups filed suit, accusing the law of being unconstitutional and encouraging racial profiling. The suit cites the case of Arizona resident Jim Shee, a seventy-year-old US citizen of Spanish and Chinese descent. Shee says he’s already been stopped twice by Arizona police officers and asked to produce identification.