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FILE - This Monday, Feb. 8, 2016, file photo shows the sign of a Chipotle restaurant in Hialeah, Fla. Chipotle is offering free kid's meals on Sundays during the month of September 2016, another attempt to lure back customers spooked by a series of food scares. An E. coli outbreak in 2015 sent Chipotle sales plunging. (AP Photo/Alan Diaz, File)