AP Photo
In this Oct. 4, 2017, photo, a device called a "bump stock" is attached to a semi-automatic rifle at the Gun Vault store and shooting range in South Jordan, Utah. The National Rifle Association announced its support Ton Oct. 5 for regulating the devices that can effectively convert semi-automatic rifles into fully automated weapons and that were apparently used in the Las Vegas massacre to lethal effect. It was a surprising shift for the leading gun industry group, which in recent years has resolutely opposed any gun regulations. Immediately afterward the White House, too, said it was open to such a change. (AP Photo/Rick Bowmer)