Watch F-35A Fighter Jet Cannon Test Fire; 3,000 Bullets a Minute

Footage shows F-35 stealth jet unleashing 181 rounds in matter of seconds. It is most expensive weapon in history, the controversial F-35 stealth fighter jet is undergoing rigorous testing at California's Edwards Air Force Base. It has so far Cost over $3.5bn, and is eight years late but won't have a fully working gun until 2017.