When the only private university in North Korea held a commencement in March, the school's American president wasn't there, blocked by Washington's ban on travel to the country.
Now, with the United States and North Korea reshaping relations between the two old adversaries, Pyongyang University of Science and Technology (PUST) President Yu-Taik Chon is hoping he will soon be able to return to his campus in the North Korean capital.
The release in May of two PUST employees and another U.S. citizen held in detention by the North helped open the door to last week's historic summit between North Korean leader Kim Jong Un and U.S. President Donald Trump.