American terror: 1 gun takes 17 lives

Students evacuate from the shooting
Photo: Joe Raedle / Getty Images

We saw, live, the helplessness of parents who had texted their kids and not gotten an answer. We saw the helicopter shots of a southern Florida high school that looked absolutely silent in mid-afternoon. It was on lockdown.

The new normal: "Lockdown," like "active shooter": a term that was unknown to us, but now is part of our young people's reality.