KARACHI - There are an estimated 20 million illegal arms in circulation in Pakistan. This includes serious firepower: law enforcement authorities are increasingly coming under attack from criminals and terrorists armed with heavy weapons such as grenades (including rocket-propelled ones), long-range sniper rifles and machine guns. The volatile situation in Lyari was a case in point, where despite the fact that police were equipped with tank-like armoured personnel... (GunPolicy.org)