FILE - In this June 15, 2011, file photo, protesters gather to support the Tucson Unified School District as Superintendent of Public Instruction John Huppenthal announces that the Tucson Unified School District violates state law by teaching it's Mexican American Studies Department's ethic studies program at a news conference at the Arizona Department of Education in Phoenix, Ariz. Arizona authorities are back in federal court in Tucson this week over a years-long legal battle against a 2010 state law targeting ethnic studies in public schools that resulted in the shuttering of a popular Mexican-American Studies program, launching tense student protests. (AP Photo/Ross D. Franklin, file)
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