"This sweet picture was taken while the girls were taking a snooze on a mat at the Presbyterian Day School in Clarksdale, Mississippi."
So it's considered not merely acceptable but just wonderful for school officials — who, exactly? — to take a picture of little girls while they sleep and to post these pictures on the internet?
Spare me the melting-hearts sentimentality and don't make a special rule for "racial harmony." (One girl is black and the other is white.) This is an intrusion on personal privacy. Other people do not exist for your appropriation, even in propaganda for causes that good people think are good.