PITTSBURGH -- Twenty years ago, Paul Carson said he never would have hesitated to speak out at a school board meeting about any issue affecting his children's education. But one day, that changed. "I just don't do it," Carson told me. A physician who practices medicine in an urban Pittsburgh hospital, Carson said it has nothing to do with his being 20 years older. "It has everything to do with the culture we are navigating." Anyone, he said, can take a video of what you say, edit it to his or her advantage, then post it on social media. Or...
