After months behind bars in Iran’s Evin prison, U.S. journalist Roxana Saberi is finally free—and thanking her supporters. “I’m very happy to be released and to be with my father and mother again,” she said Tuesday in Tehran. “I’m thanking all those people around the world who knew me or who didn’t know me but helped my release.” But why was the 32-year-old Iranian-American, who freelanced for NPR and the BBC, jailed for espionage in the first place? One of her Iranian lawyers says a confidential Iranian document about the U.S. invasion of Iraq was used as evidence against her. Saberi obtained and copied the document while working as a translator but did not pass it on to the Americans, the lawyer said.