Science: At the height of the Korean War, a scared 16-year-old boy made a promise as he lay wounded by shrapnel on a battlefield. “I said, âGod, if you save my life, I will return this love to my enemy,’” recalls Kim Chin-Kyung, who was fighting for the south against the north.Six decades later, the 74-year-old businessman turned university administrator is keeping his word. Last week, Kim was appointed president of Pyongyang University of Science and Technology (PUST) at a ceremony in Pyongyang to commemorate completion of the $35 million campus, which after 4 years of delays is expected to open in November to the crème de la crème of North Korea’s science graduate students.