Site Closing News Today

In power, we dont know how much economic opening is possible without threatening the underpinnings of that regime. >> reporter: tonight theres also concern about the sincerity of north koreas promise to shut down its main nuclear bomb test site. trump tweeted so great for world, site closing and no more testing. but geologists say part of that site has already collapsed from north koreas massive thermonuclear bomb test in september. >> is it functional at all? >> i think part of the site is func...