Sarah Shourd, Former Prisoner in Iran

"Iran knew we were just tourists." That is what Sarah Shourd claims. She was arrested when hiking with two other Americans on Iraq's border with Iran.

After 14 months in Tehran's notorious Evin prison she was released. But her fiance and their friend are still there nearly two years on.

They've had barely any contact with the outside world and although they were promised a trial, it still hasn't happened. What will it take to secure their release?