For much of the past 70 years Christians in the Soviet Union have practised their religion in the face of great hostility. During Stalin's time many priests and believers were imprisoned, victimised and murdered. And under Khrushchev thousands of churches were closed. Today things are changing. Mr Gorbachev 's second revolution - his perestroika - is beginning to reach the Church. Some dissident priests and believers have been allowed out of prison; the supporters of religion are being given a voice in the normally atheist Soviet media; and there is even talk of the state returning some of the powers it removed from the Church after the revolution. But how far will glasnost go? As the Church celebrates the millennium of Christianity in Russia Everyman has been to the Soviet Union to find out what it's like to be a Christian in an atheist world.