Princeton graduate student Xiyue Wang enjoying a meal of noodles with his son. AFP
US Ambassador to Switzerland Edward McMullen, Jr, presents a US flag to and welcomes Princeton graduate student Xiyue Wang on arrival in Switzerland after his release from Iran. AFP
Iran's Foreign Minister Mohammad Javad Zarif, left, shakes hand with Iranian scientist Massoud Soleimani prior to leaving Zurich, Switzerland for Tehran, Iran. AP
Iran Foreign Minister Mohammad Javad Zarif (left) and Iranian scientist Massoud Soleimani speaking to each other while sitting in a plane at an undisclosed location. AFP
Princeton graduate student Xiyue Wang with his wife and their son before he was detained in Iran in August 2016. AFP
Iranian professor Massoud Soleimani sits next to Iran's Foreign Minister Mohammad Javad Zarif during his arrival at Mehrabad airport, in Tehran. Reuters
US Special Representative for Iran Brian Hook welcomes Princeton graduate student Xiyue Wang on arrival in Switzerland after his release from Iran. AFP
Princeton graduate student Xiyue Wang enjoying a meal of noodles with his son. AFP
US Ambassador to Switzerland Edward McMullen, Jr, presents a US flag to and welcomes Princeton graduate student Xiyue Wang on arrival in Switzerland after his release from Iran. AFP
Iran's Foreign Minister Mohammad Javad Zarif, left, shakes hand with Iranian scientist Massoud Soleimani prior to leaving Zurich, Switzerland for Tehran, Iran. AP
Iran Foreign Minister Mohammad Javad Zarif (left) and Iranian scientist Massoud Soleimani speaking to each other while sitting in a plane at an undisclosed location. AFP
Princeton graduate student Xiyue Wang with his wife and their son before he was detained in Iran in August 2016. AFP
Iranian professor Massoud Soleimani sits next to Iran's Foreign Minister Mohammad Javad Zarif during his arrival at Mehrabad airport, in Tehran. Reuters
US Special Representative for Iran Brian Hook welcomes Princeton graduate student Xiyue Wang on arrival in Switzerland after his release from Iran. AFP
Princeton graduate student Xiyue Wang enjoying a meal of noodles with his son. AFP
