RangerMC, since you're referring to "Priorities for Research to Reduce the Threat of Firearm-Related Violence" (2013), here's what it says:
"...the U.S. rate of firearm-related deaths is the highest among industrialized countries. In 2010, incidents in the United States involving firearms injured or killed more than 105,000 individuals; there were twice as many nonfatal firearm-related injuries (73,505) than deaths. Nonfatal violence often has significant physical and psychological impacts, including psychological outcomes for those in proximity to individuals who are injured or die from gun violence. The recent, highly publicized, tragic mass shootings in Newtown, Connecticut; Aurora, Colorado; Oak Creek, Wisconsin; and Tucson, Arizona, have sharpened the public’s interest in protecting our children and communities from the effects of firearm violence."
Yet RangerMC wants to do nothing.  Good thing he's in the minority.