South Koreans hold up placards during a rally welcoming the planned Inter Korean Summit in front of Presidential Blue House on April 26. Banners around Seoul show a united Korea over an image of two shaking hands ahead of the summit. It is the third summit between the leaders of North and South Korea -- the last was in 2007 when then-South Korean President Roh Moo-hyun met Kim's father Kim Jong Il. Revere said he was one of the "many skeptics" who were not holding their breath for many concessions by North Korea on their nuclear program. "The North Korean language thus far has not been very specific ... that suggests that they're not being particularly serious about denuclearization," he said.

Source: CNN April 26, 2018 15:45 UTC