This bothers me.
Read it first, and see if you can figure out what it is that bugs me. I'll wait.
Done? Ok.
The thing that bothers me isn't that 'those evil whites are discriminating against those poor African-Americans,' it's 'the AP is intentionally pushing a skewed presentation of a story to make it look that way.' It's all for whites, yes, but that's because if the school did not admit blacks until the fall of 1969. Meaning none of them graduated in the 1960s. And the reunion is for people who graduated from this school in the '40s, '50s, and '60s.
You may say “why don't they let people from later come too?”, but this avoids the fact that the classes have reunions for each year after that. Which don't exclude blacks.
Why did the AP do this story? Well, it pushes a worldview that the AP seems to support… and how interesting would a story be if it was headlined “Class reunion for '40s, '50s, and '60s students of Washington High School”?