Bahrain projects itself towards the world as an Arab state that is open to investment, progressive about change and moving confidently toward democracy. But there is another Bahrain where dissent is suppressed and critics jailed. It is a country where allegations are rife that political prisoners are routinely tortured. Bill Law investigates both sides of the Bahrain story and asks what lies behind the apparently heavy-handed repression of those who criticize the ruling al Khalifa family