By Rebecca Shabad - 12/05/13 01:13 PM EST
Two major gun control groups have released a hard-hitting video ad calling for action one year after a gunman killed 26 people at Sandy Hook Elementary School in Newtown, Conn.
The ad shows elementary school children standing in a classroom as a clock ticks and scenes of people bowing their heads in silence.
“But with 26 more school shootings since that day ... Ask yourself, is silence what America needs right now?" the narrator says. A figure dressed in black then drops a bag and enters a school building.
The 60-second ad concludes with the text: “Speak out now."
Moms Demand Action and Mayors Against Illegal Guns created the video. They also released a shorter 30-second version.
Moms Demand Action is leading a campaign to gather mothers in more than 35 states to honor the victims of last year’s mass shooting.