French hackers are selling concealed weapons including so-called pen guns that fire .22 Long Rifle bullets on highly secretive crime forums, threat researcher Cedric Pernet says. Videos of the home-made pen guns scattered around the internet show the weapons in working use. The guns are being sold for €150 (US$169, £127, A$226) alongside other concealed weapons like knuckle dusters and knives, and more expensive conventional large firearms. Trend Micro's Pernet... (GunPolicy.org)