In this Friday May 20, 2016 photo released by the Catholic Archdiocese of Hue, Catholic priest Nguyen Van Ly, center, is welcomed back by Archbishop Tadeo, left, and a senior colleague to his parish in Hue, Ha Nam province, Vietnam. Vietnam granted early release from prison to Ly who is one of its most prominent dissidents, a move widely seen as a goodwill gesture before U.S. President Barack Obama arrives on an official visit late Sunday night. Ly has been serving an eight-year prison term since March 2007 after being convicted of spreading propaganda against the state. Catholic Archdiocese of Hue AP