Were following breaking news. Im wolf blitzer in washington. We want to welcome our viewers in the United States and around the world. This is coverage of the breaking news. Five american prisoners now released by iran. Four as part of a prisoner swap. The prisoners clue Washington Post Jason Rezaian, the christian Saeed Abedini, amir hekmati, we dont know anything about mr. Nosratoliah khoshawi, a fifth, Mathew Trevithick. Details of the deal, they say secret talks with iran have been going on for about 14 months. In exchange for four of the americans, the u. S. Gave clemency to seven people held for violating sanctions against iran and dropped changes against 14 other iranians that likely the u. S. Officials say would never they like never would have been extradited to begin with. They wanted released as a goodwill gesture. Joining us now elise labott and international nic robertson, joining us from vienna. What are you learning about the the fifth. Mathew trevithick we didnt even kn