An aging North Korean nuclear strategist involved in now-dormant disarmament deals. His former interpreter in international negotiations who is now North Korea's highest-ranking female diplomat.
Kim Kye Gwan and Choe Son Hui are among the best-known North Korean officials after leader Kim Jong Un and his family members. They are in the news again now after their recent back-to-back comments about the United States were blamed for President Donald Trump's abrupt cancellation on Thursday of a much-anticipated summit with Kim Jong Un. On Friday, Trump said the two sides were working to put the meeting back on track.
A look at who the officials are and how their comments led Trump to spike the summit planned for June 12 in Singapore: