KARACHI (Staff Report) – A hand grenade exploded inside courtroom in Karachi’s Anti-Terrorism Court (ATC) after a judge asked a police constable if he knew how grenades worked. The constable, instead of explaining his expertise in weapons and grenade handling to the judge, opted to demonstrate practically by promptly pulling out the pin from the grenade. This resulted in a loud explosion, injuring five including the judge, the constable and a court clerk. The blast took place while hearing of a case was underway in courtroom-III. Two policemen and a court clerk were among injured and taken to a nearby...