On Friday's broadcast of CNN's "The Lead," Special Presidential Envoy for Hostage Affairs at the State Department Roger Carstens said the U.S. government is "disappointed" in China upholding the death sentence of American national Mark Swidan -- who has been classified as wrongly detained -- and that "we have an effort right now with the Chinese and we have to just kind of let things play out" and China holds "the key to the jail cell, and it's going to be up to us to find that way to bring him back."