North Korea's leader Kim Jong Un, U.S. President Donald Trump, Kim Yong Chol, Vice Chairman of the North Korean Workers' Party Committee, and U.S. Secretary of State Mike Pompeo talk while Kim Yo Jong, sister of North Korea's leader Kim Jong Un and first vice department director of the ruling Workers’ Party’s Central Committee looks on at the Metropole hotel during the second North Korea-U.S. summit in Hanoi, Vietnam February 28, 2019. REUTERS/Leah Millis