This afternoon, I received text alerts from my kids' school that they were on lockdown. I thought you might like to know what happens, from the perspective of my 12yo. I just picked her up from school and she was rattled and full of adrenalin. "A robot voice came over the speakers telling us to get into our classrooms. The teachers pulled down the blinds and made us crowd into the far corner of the classroom. We were all so scared and lots of kids were crying. My BF and I were holding each other. I hugged a kid who