IMAGINE YOU ARE in the raging streets of Tehran, not with the people who are demonstrating against a brutally repressive government, but you are there against the people. Your name is Ahmed, and you are part of the force sent to crush the demonstrators, but you do not want to be there. The violence sickens you. People are being savagely beaten. A woman near you is shot and falls to the pavement, blood streaming from her mouth. As she lays...