Are These Students Being Racist Or Just Unsportsmanlike?

Students turned their backs to opponents at a high school basketball game.
Posted at 6:21 PM, Dec 16, 2016

Why is this crowd of high school students turning their backs to the opposing basketball team?

"I'm appalled by the nonsense I've just witnessed with my own two eyes," spectator Toniaa Lakylia Nunn said on Facebook. 

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The district's superintendent told The Kansas City Star it's a long-held tradition at the Missouri high school.

But the students don't usually bring a Donald Trump sign to greet a mostly nonwhite basketball team.

The superintendent said that sign took things from "unsportsmanlike" to "insensitive, not necessary and inappropriate."

Should the students be punished? Or is this acceptable behavior for high school sports?