His policy of engagement with North Korea has been termed the Sunshine Policy. He moved to begin détente with respect to the totalitarian government in North Korea, which culminated in a historic summit meeting in 2000 in Pyongyang with North Korean leader Kim Jong-il. This marked a critical juncture in inter-Korean relations. On 13 October 2000, he was awarded the Nobel Peace Prize for these efforts. A big consequence of these efforts is that on September 15, 2000, the Korean Unification Flag() was carried into an Olympic Stadium during an Olympic opening ceremony for the first time. However, the historic event was tainted significantly by allegations that at least several hundred million dollars had been paid to North Korea. This is the Cash-for-summit scandal. Hyundai transferred $500 million to the North just months before the summit, triggering criticism that S.Korean Government paid for the summit. Hyundai claimed the money was a payment for exclusive business rights in electric power facilities, communication lines, an industrial park, cross-border roads and railway lines in North Korea. And in this regard, Park Jie-won was charged with violating domestic laws on foreign exchange trade and inter-Korean cooperation affairs while orchestrating covert money transfers by Hyundai to North Korea. Mr. Park played a pivotal role in arranging the first Inter-Korean summit. In May 2006, he was sentenced for three years in prison. Park was released in February 2007, and pardoned in December 2007. Also in order to persuade North Korea to attend the summit, several "unconverted long-term prisoners" kept by South Korea were released and returned to North Korea.