Students at the Codman Academy Charter Public School in Boston were dismayed to learn that the French consulate warns tourists on its website to avoid walking at night in their Dorchester neighborhood. The consulate says it's because of crime in the area. Haley Malm, a French teacher at Codman, says the students were quite offended that Boston's Dorchester, Mattapan, and Roxbury neighborhoods were specifically targeted as places not to visit.