CNN analyst Juliette Kayyem is the author of the best-seller, "Security Mom: An Unclassified Guide to Protecting Our Homeland and Your Home." I was turning onto my street, with the dog on the passenger side, when the familiar phone number came through on my cell phone. It's a number from CNN in New York City; it's a number that those of us who are security analysts for CNN know all too well. A shooting at a school, a known assailant; fear, terror; parents searching for their kids; a gun, that AR-15 --again and again and again. Then the signs -- so many signs -- that the shooter left over time; signs along a trail leading to his deadly destruction.

Source: CNN February 15, 2018 05:48 UTC