Each morning, you stand by the window watching your boys until they're on the bus or picked up. You watch them leave your circle of safety and hope for the best. You can't know what that day will bring. Nothing, maybe. Or maybe a bomb threat. Maybe a math test. Maybe a lockdown drill. Or maybe a real lockdown. But on this day, there is something different. A rally. A walk-out. A demonstration. Your oldest son asked if you'd call to have him dismissed and bring him downtown to attend the demonstration. You want your voice to be heard, and even more, you want your son's voice to be heard, so you call the school, you pick him up, you drive downtown. You don't know what to expect, but the reality makes you weepy. A crowd of teenagers, many carrying hand-drawn signs stand gathered in front of the church, chanting. Adults congregate around the edges. A band plays, keeping time for the chants. Horns honk as their drivers show support. One man in a truck wags his fi...