By and , CNNLink Copied!Ad Feedback — The US State Department’s top diplomat in charge of policy is retiring at the end of the week.Joseph Yun, who is in his early 60s, told CNN Tuesday: “It was completely my decision to retire at this time.” He said US Secretary of State Rex Tillerson accepted his resignation “with regret.”State Department spokeswoman Heather Nauert said in a statement Yun, who joined the Foreign Service in 1985, decided to leave for personal reasons.“We are sorry to see him retire, but our diplomatic efforts regarding North Korea will continue based on our...…By and , CNNLink Copied!Ad Feedback — The US State Department’s top diplomat in charge of policy is retiring at the end of the week.Joseph Yun, who is in his early 60s, told CNN Tuesday: “It was completely my decision to retire at this time.” He said US Secretary of State Rex Tillerson accepted his resignation “with regret.”State Department spokeswoman Heather Nauert said in a statement Yun, who joined the Foreign Service in 1985, decided to leave for personal reasons.“We are sorry to see him retire, but our diplomatic efforts regarding North Korea will continue based on our...WW…