A newly appointed U.S. special representative for North Korea pledged Tuesday, during meetings with South Korean officials in Seoul, to push forward denuclearization on the Korean Peninsula."We have some hard work to do, but we also have a tremendous opportunity created" by U.S. President Donald Trump, South Korean President Moon Jae In and North Korean leader Kim Jong Un, Stephen Biegun said at the outset of the talks with South Korea's top nuclear envoy Lee Do Hoon."And we need to do everything we can" to make the most of this opportunity, he said, before adding that the U.S. president is…READ FULL ARTICLE