For years, many have dreamed of so-called smart guns, weapons that know their rightful owner and won't fire in the wrong hands. Think James Bond's gun in Skyfall.
A few major gun makers experimented with smart guns in the 1990s, but none came to market. Since then, it's been the domain of entrepreneurs and inventors.
DevelopersAnd Technologists
Jonathan Mossberg's company developed what he calls the iGun. It fires only if it recognizes a ring on a finger.
