Ahead of a rare visit to the White House by a senior North Korean official, a top US envoy on Friday said that talks between the United States and North Korea are headed in the right direction. At a meeting, Kim Yong Chol, a close aide of Kim Jong Un, will hand over a letter from the North Korean leader to US President Trump to put the derailed summit back on track. Trump hopes to meet Kim Jong Un in Singapore on June 12 and pressure him to give up his nuclear weapons.