Estimated number of US gun owners has grown by 20 million in recent years, which experts say may lead to more firearm deaths
Americans bought an estimated 150m guns in the past decade, as a drumbeat of mass shootings and other violence has convinced more people that owning a gun for self-defense will make them safer.
In a country where the leading cause of gun death is gun suicide, public health experts say a growth in gun ownership is likely to lead to more deaths.
In the 10 years since the mass shooting at Sandy Hook elementary school, the US gun safety movement has gained some political power, while the National Rifle Association has been weakened by internal disputes and legal battles. At the same time, overall gun ownership in the US appears to have grown.
People who choose to own guns are still a minority of the US population, with about a third of Americans saying they personally own a gun, and fewer than half saying they live in a house with a gun, according to survey estimates.