After Sandy Hook, we'll never be silent on guns again

Story highlights

  • Shannon Watts: Moms are banding together to change our country's culture of gun violence, and it's working
  • Moms Demand Action have contributed to the defeat of dozens of gun lobby bills in Congress

Shannon Watts is the founder of Moms Demand Action for Gun Sense in America, a part of Everytown for Gun Safety. The opinions expressed in this commentary are hers.

(CNN)Three years ago today, I was sitting at my kitchen counter, devastated and outraged by the tragedy that had played out on my television: 20 first-graders and six educators were gunned down by a heavily armed gunman in the sanctity of an American elementary school -- Sandy Hook Elementary School in Newtown, Connecticut.

Shannon Watts