PAJU, SOUTH KOREA - FEBRUARY 11:  South Korean workers unload their products made in North Korea after they arrive from the Kaesong joint industrial complex in North Korea at the inter-Korean transit office on February 11, 2016 in Paju, South Korea. South Korea announced on February 10, 2016 that the country would close an industrial complex jointly ran with North Korea, as the strongest response for North's recent nuclear test and rocket launch.  (Photo by Chung Sung-Jun/Getty Images)