Police have found explosives, home-made bombs and a gun in a cinema in St. Petersburg. The discovery was made in the city's Progress cinema, which has been closed for renovation for the past six months.The Interfax news agency reported that prior to the discovery, three men from Kazakhstan were arrested who were in possession of four Kalashinkov rifles.The arrest, by organized crime squad detectives, suggests that the weapons could be related to criminal gangs.The country has been on a state of high alert following the recent terrorist attacks on a Beslan school, which killed more than three hundered, and two...