The Latest: Pompeo updates Japan, South Korea after summit

U.S. Secretary of State Mike Pompeo speaks during a press briefing Monday, June 11, 2018 in Singapore one day before President Donald Trump will meet with North Korean leader Kim Jong Un. (AP Photo/Susan Walsh)
North Korea leader Kim Jong Un and U.S. President Donald Trump prepare to sign a document at the Capella resort on Sentosa Island Tuesday, June 12, 2018 in Singapore. (AP Photo/Evan Vucci)
U.S. President Donald Trump shakes hands with North Korea leader Kim Jong Un at the Capella resort on Sentosa Island Tuesday, June 12, 2018 in Singapore. (AP Photo/Evan Vucci)
President Donald Trump meets with North Korean leader Kim Jong Un on Sentosa Island, Tuesday, June 12, 2018, in Singapore. (AP Photo/Evan Vucci)
North Korean journalists film the motorcade of North Korea leader Kim Jong Un as they leave the St. Regis Hotel on the way to the Capella Hotel in Singapore, Tuesday, June 12, 2018, where the summit between Kim and U.S. President Donald Trump will take place. (AP Photo/Yong Teck Lim)
People watch a TV screen showing U.S. President Donald Trump meet with North Korean leader Kim Jong Un during a news program at the Seoul Railway Station in Seoul, South Korea, Tuesday, June 12, 2018. (AP Photo/Ahn Young-joon)
John Miller, of Manchester, N.H., a former U.S. Army sergeant who served as a forward radio relay operator in Vietnam, watches as President Donald Trump shakes hands with North Korean leader Kim Jong Un, while having a beer at the American Legion Post #2 in Manchester on Monday, June 11, 2018. (AP Photo/Charles Krupa)
U. S. President Donald Trump stands with North Korea leader Kim Jong Un for a photograph at the Capella resort on Sentosa Island Tuesday, June 12, 2018 in Singapore. (AP Photo/Evan Vucci)

The Latest: Pompeo updates Japan, South Korea after summit

U.S. Secretary of State Mike Pompeo speaks during a press briefing Monday, June 11, 2018 in Singapore one day before President Donald Trump will meet with North Korean leader Kim Jong Un. (AP Photo/Susan Walsh)
North Korea leader Kim Jong Un and U.S. President Donald Trump prepare to sign a document at the Capella resort on Sentosa Island Tuesday, June 12, 2018 in Singapore. (AP Photo/Evan Vucci)
U.S. President Donald Trump shakes hands with North Korea leader Kim Jong Un at the Capella resort on Sentosa Island Tuesday, June 12, 2018 in Singapore. (AP Photo/Evan Vucci)
President Donald Trump meets with North Korean leader Kim Jong Un on Sentosa Island, Tuesday, June 12, 2018, in Singapore. (AP Photo/Evan Vucci)
North Korean journalists film the motorcade of North Korea leader Kim Jong Un as they leave the St. Regis Hotel on the way to the Capella Hotel in Singapore, Tuesday, June 12, 2018, where the summit between Kim and U.S. President Donald Trump will take place. (AP Photo/Yong Teck Lim)
People watch a TV screen showing U.S. President Donald Trump meet with North Korean leader Kim Jong Un during a news program at the Seoul Railway Station in Seoul, South Korea, Tuesday, June 12, 2018. (AP Photo/Ahn Young-joon)
John Miller, of Manchester, N.H., a former U.S. Army sergeant who served as a forward radio relay operator in Vietnam, watches as President Donald Trump shakes hands with North Korean leader Kim Jong Un, while having a beer at the American Legion Post #2 in Manchester on Monday, June 11, 2018. (AP Photo/Charles Krupa)
U. S. President Donald Trump stands with North Korea leader Kim Jong Un for a photograph at the Capella resort on Sentosa Island Tuesday, June 12, 2018 in Singapore. (AP Photo/Evan Vucci)