Today we had the largest gathering of Moms Demand Action Miami ever. It lasted just about an hour. It was a far cry from the first one I attended just about a year ago. Just a few of us sitting in comfortable chairs in a midtown coffee shop trying to figure out how we'd ever gather the momentum to make common sense gun laws a reality. Our momentum would come from 17 lost souls. The Parkland 17 are raising their voices from their graves and lending them to us to tell their horrible story and the stories of the thousands of Americans who've been affected by the horror of gun violence.