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President Donald Trump, left, and South Korean President Moon Jae-in shake hands in a joint news conference at the Blue House in Seoul, South Korea, Tuesday, Nov. 7, 2017. President Trump began his two-day Korean peninsula visit Tuesday walking amid weapons of war but voicing optimism for peace. Trump is on a five country trip through Asia traveling to Japan, South Korea, China, Vietnam and the Philippines. (AP Photo/Andrew Harnik)
President Donald Trump, left, and South Korean President Moon Jae-in shake hands in a joint news conference at the Blue House in Seoul, South Korea, Tuesday, Nov. 7, 2017. President Trump began his two-day Korean peninsula visit Tuesday walking amid weapons of war but voicing optimism for peace. Trump is on a five country trip through Asia traveling to Japan, South Korea, China, Vietnam and the Philippines. (AP Photo/Andrew Harnik)

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Eyes on North Korea as Trump visits Seoul

Chung Min Lee of Carnegie's Asia Program tells Kristie Lu Stout why he thinks Trump's Asia visit is a turning point in the standoff with North Korea

Eyes on North Korea as Trump visits Seoul

Chung Min Lee of Carnegie's Asia Program tells Kristie Lu Stout why he thinks Trump's Asia visit is a turning point in the standoff with North Korea