brent: adnan tabatabai joining us tonight from the german city of duesseldorf giving us valuable insightank you very much. adnan: my pleasure. brent: south korea has asked the united nations to oversee the mothballing of a new theater -- nuclear test site used by pyongyang. both sides have started taking down speakers that blare propaganda across the border. this is all a first step that could signal a long-term fall on the divided peninsula. reporter: for years, south korean loudspeakers have blasted propaganda and pop music at north korean border regions. now they are being permanently removed. north korea is reportedly doing their own with their own south-facing speakers. since 2015, the clocks of north and south korea were out of sync by half an hour after north korea created its own time zone. later this week the north will reset its clocks to match seoul time. these measures of reconciliation are the first signs that last week's inter-korean summit was more than just words. in the coming weeks, the inter-korean border could again become the site of historic talks. u.s. president do