By Nicole R. Fleetwood One evening last spring, my son packed his backpack for school the next day and sighed. “Mom, it’s weird walking around near my school,” he said. His somber tone made me afraid of what would come next—confessions of bullying, peer pressure, or, as had been reported about the eighth-graders, witnessing kids drinking or making out near the campus. “Why?” I asked, trying to sound...