Owners of AR-style firearms are defending their choice of weapon in the face of mounting public opposition. Supporters say handguns are more often used in killings while critics say the firearm is too powerful and deadly.
Daytona Beach, Florida-based iGun Technology Corp. has been developing a "smart gun," a firearm that uses a ring with a chip in it to send a signal to a circuit board embedded in the firearm so that only an authorized user can fire the gun.
A petition seeking to allow firearms to be openly carried inside the arena for this summer's Republican National Convention is sparking debate, attracting tens of thousands of signatures in a matter of days. But is it for real? And who actually started it?