Under the eye-catching banner, "48,000 Americans will be murdered with guns during President Obama's Term," a group that advocates tighter restrictions on firearms sharply criticized the White House for its reaction to the massacre at a Newtown, Conn., elementary school.
Demand A Plan rebuked President Barack Obama's press secretary Jay Carney on Friday for saying that "today's not the day" to push for gun control.
"We couldn't disagree more," the group wrote on its website. "We say, Now IS the Time to talk about guns. Now IS the time to prevent more pointless deaths. Now IS the time to Demand A Plan to End Gun Violence."
Founded after the July 2012 shooting rampage in Aurora, Colo., the organization is composed of survivors of recent mass shootings, relatives of victims, and Mayors Against Illegal Guns. That group, in turn, was co-founded in 2006 by New York City Mayor Michael Bloomberg and Boston Mayor Thomas Menino.
"The school shooting in Newtown, Connecticut, is a tragedy beyond comprehension," Demand A Plan wrote. "Our thoughts and prayers are with the victims, their loved ones and the community that has been hit with this senseless act of violence.
"But our condolences are not enough," it continued. "Mass shootings and gun murders have become commonplace in our country because our laws are broken and our leaders have no plan to address gun violence."