In recent days, more than 750 unaccompanied immigrant children were transported from Texas to Arizona. Now, a coalition of advocacy groups says it has documented more than 100 allegations of mistreatment of unaccompanied immigrant children arrested by U.S. border authorities.

We spoke to ACLU staff attorney James Lyle about the complaint the coalition filed with the Department of Homeland Security. Also, Los Angeles Times reporter Cindy Carcamo had the latest on conditions in Nogales, Ariz.