The North Koreans are in the middle of weapons testing. They fired off a record number of rockets up last year, and they've done a fair few this year. So while they're still in the process of that development of their weapons program, they don't really have any particular compulsion to talk. And do you think that they will? I mean, their government isn't exactly known for being the most diplomatic.
Little is known about why he fled across the border into the hermit kingdom, but securing his release will require some tactical diplomacy. Given the tense relationship between both countries, is Kim Jong Un prepared to come to the table? A look at research which suggests gold might not always be an effective hedge against inflation (08:52). And, why mountains stop growing (15:42).
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