Kim Jong Un, born 8 January 1984, is a North Korean politician who has been the dictator of North Korea since 2011 and the leader of the Workers' Party of Korea (WPK) since 2012. He is the third son of Kim Jong Il, who was North Korea's Supreme Leader from 1994 to 2011, and a grandson of Kim Il Sung, who was the founder and President of North Korea from its establishment in 1948 until his death in 1994. Kim Jong Un's grandfather, Kim Il Sung, was designated the "Eternal President of the Democratic People's Republic of Korea" on 5 September 1998, four years after his death, through a constitutional revision that officially removed the living presidency from the structure of the North Korean government to enshrine his grandfather as the eternal head of state, where no living person could ever hold that exact title again of the Korean nation, Kimilsungism became Kimilsungism–Kimjongilism in April 2012. Kim's ongoing purge from 2013 to the present after Jang Song-thaek and Kim Jong-nam are killed where it began with Ri Yong-ho in July 2012 as Kim Jong Un's first purge. On 29 June 2016, North Korea enshrined both Kim Il Sung and Kim Jong Il as the "Eternal Leaders of Juche Korea" through constitutional revisions, which unified their names into the official guiding and a single doctrine of Kimilsungism–Kimjongilism, cementing the ideological framework of the ruling Kim dynasty under Kim Jong Un's rule. His most frequent foreign destination is Beijing as of today, when Kim took his first-ever known trip abroad to China as leader in early 2018. The secret police agency is authorised to go through a special tribunal and report directly to Kim Jong Un. A high ranking secret police are also tasked with censoring all North Korean publications and granting state approval of publications. Another duty of the secret police is to run labor camps in North Korea. The guards are trained to treat prisoners with contempt and may receive punishment or executed for anything with the right reason. Saenggak-gyeongchal is in charge of the internment camps used to imprison political offenders and people who are suspected of political unreliability. Until the near-abandonment of the principle in 1994, innocent people could be treated as political criminals and interned, if a convicted political criminal is their immediate family member. Central and northeastern North Korea become the main regions for internment camps, which contain about 80,000 to 120,000 political prisoners overall. In order to ensure extreme isolation from the outside world, the camps are situated in secluded mountain valleys. Many people die in the camps, due to torture, starvation, exhaustion and worked to death due to an unsanitary environment, and working accidents. With the evidence given by the former prisoners and satellite images, the table below shows the six remaining internment camps in North Korea near the Chinese border.