Michael White had only recently arrived in a grim Iranian jail when a curious fellow prisoner, an English-speaking Iranian, approached him in the courtyard for a conversation.
The American did not reveal much at first, but it was the beginning of an unlikely friendship between White, a Navy veteran imprisoned on spying charges he says were unfounded, and Mahdi Vatankhah, a young Iranian political activist whose positions on social issues had drawn his government's ire.
