The Armatix smart gun is implanted with an electronic chip that allows it to be fired only if the shooter is wearing a watch that communicates with it through a radio signal. It is not sold in the U.S.
Sen. Mary Landrieu, D-La., talks with her father, former New Orleans Mayor Moon Landrieu, on Feb. 1. The two appear together in recent television ads for her re-election campaign.
Mississippi Freedom Democratic Party delegates and supporters stage a demonstration on the boardwalk in front of the Atlantic City Convention Center in 1964.
Courtesy of George Ballis/Take Stock