Three U.S. citizens who had been held as prisoners in North Korea have been returned to the United States, where they were greeted by President Trump early this morning at Joint Base Andrews in Maryland. The release of Tony Kim, Kim Hak-song and Kim Dong-chul came after Secretary of State Mike Pompeo met with North Korean leader Kim Jong-un in Pyongyang, and as the U.S. continued to negotiate terms of what would be an unprecedented meeting between Kim and President Trump. On Wednesday, Trump told reporters he’d ruled out a meeting at the Demilitarized Zone separating the North from South Korea, saying he’d announce the time and place of the summit by the end of the week. The announcement leaves Singapore as the likely location for the meeting.