Moms Demand Action has launched a campaign to drive support for new and stronger gun laws in America in the aftermath of the massacre at Sandy Hook Elementary School in 2012. The video, "How many more rounds?," is an emotive depiction of the damage caused by gun violence. An AR-15 assault weapon is fired in slow motion with each discharged shell casing representing a major shooting in America. The video ends with the message, "How many more rounds are we going to let this go on for?"
