North Korea keeps undeclared missile bases up and running: U.S. think tank

In reports released by the Washington, D.C.-based Center for Strategic and International Studies, researcher Joseph Bermudez said maintenance and minor infrastructure improvements have been observed at some of the sites, despite the ongoing negotiations.North Korean leader Kim Jong Un and U.S. President Donald Trump pledged to work toward denuclearization at their landmark June summit in Singapore, but the agreement was short on specifics and negotiations have made little headway.Shortly after t