California has filed a lawsuit against two websites for distributing instructions on making ghost guns. Attorney General Rob Bonta and San Francisco City Attorney David Chiu are targeting the Gatalog Foundation Inc. and CTRLPEW LLC. The lawsuit claims these sites violate state laws by providing computer code and guidelines for 3D printing firearms. Officials say the sites offer designs for over 150 lethal firearms and accessories. The defendants could not be reached for comment. The lawsuit highlights the rising issue of ghost guns, which are untraceable and bypass background checks. California law enforcement has seen a dramatic increase in ghost gun recoveries over the past decade.