Chinese-American graduate student freed from Iran in prisoner exchange

After three long years, Xiyue Wang is on his way home. Wang, a Chinese-American graduate student at Princeton University who had been detained in Iran since 2016, was freed Saturday when Iran and the United States conducted a prisoner exchange in Zurich, Switzerland. The exchange also saw the release of Iranian scientist Massoud Soleimani who had been convicted of violating U.S. trade sanctions against Iran. Brian Hook, the State Department's special representative for Iran, worked with Swiss in...