Leonard Pitts Jr.: How young is too young to teach white kids about race?

Isabella Tichenor killed herself a few days ago. She was 10 years old.

Her mother, Brittany Tichenor-Cox, said last week that her daughter — she called her “Izzy” — had been the target of ongoing racist abuse from classmates at her school in North Salt Lake, Utah. Izzy, who was African American and had autism, was repeatedly called a “n----r” and told that she