Just three percent of adults own half of America’s guns

Just 3 percent of American adults own half of the nation's firearms, according to the results of a Harvard-Northeastern survey of 4,000 gun owners.

The survey's findings support other research showing that as overall rates of gun ownership has declined, the number of firearms in circulation has skyrocketed. The implication is that there are more guns in fewer hands than ever before. The top 3 percent of American adults own, on average, 17 guns apiece, according to the survey's estimates.