A new design for a self-guiding bullet could allow sharpshooters to accurately fire at targets a full mile away. The bullet, which is still in a prototype phase, is the brainchild of Sandia National Laboratories researchers Red Jones and Brian Kast. It is designed with built-in actuators and tiny fins that should allow it to rapidly adjust its path in flight. Designed with the military, law enforcement, and recreational shooters as potential customers, the bullet is four inches long and has an optical sensor embedded in its nose for the detection of a laser on its target, Sandia said in...