Stunning North Korea announcement met with hope, skepticism

South Korea's national security adviser made a stunning announcement in the White House driveway Thursday night: North Korean leader Kim Jong Un had pledged to refrain from nuclear or missile...

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JUDY WOODRUFF: Surprise, praise, skepticism, the range of reactions to last night's announcementthat President Trump and North Korea's dictator, Kim Jong-un, may meet face to face.Hari Sreenivasan begins our coverage.HARI SREENIVASAN: It was a stunning announcement, made more so by the circumstances, in theWhite House driveway, by South Korea's visiting national security adviser.®MD-BO¯CHUNG EUI-YONG, South Korean National Security Adviser: Kim pledged that North Koreawill refrain from any further nuclear or missile tests.And he expressed his eagerness to meet President Trump as soon as possible.HARI SREENIVASAN: South Korean officials had met with Kim Jong-un on Monday, and then briefedPresident Trump Thursday afternoon.CHUNG EUI-YONG: Presi...