My generation is no stranger to witnessing horrible moments in human history. We remember where we were when the Challenger exploded. Many of us were watching it on live TV. I was in 9th grade AA Civics, listening to a kid give a speech on air safety when the principal broke over the intercom with the news. When the Columbine massacre occurred, I was a young mom of two very small kids. I watched it unfold on television, stunned how children could commit atrocities aimed at other children. On 9/11, I was home with three small ones and pregnant with our fourth baby. As they spent the day parked in front of Nick Jr. and the Disney Channel, I was in an adjoining room watching the towers fall. When they came to me for snacks and diaper changes, I’d turn the small TV toward the wall. They ...