Groups announce legal challenges to Arizona immigration law

Today a coalition of civil liberties and immigrant rights groups announced that they will file a legal challenge to Arizona's new harsh immigration law. The law requires local police to question people who they suspect of being undocumented. The groups challenging the law say that it promotes racial profiling, endangers public safety and is unconstitutional. Supporters call it a necessary step to fight violence along the border and to fix failed policy on immigration.

To hear more about the legal challenge, we're joined by Karen Tumlin. She's the managing attorney with the National Immigration Law Center, one of the groups leading the effort.