North Korea seems an unlikely place for capitalism to take hold. But markets are playing a bigger role in daily life in the country. While that's created a degree of economic stability in the short run, it's also inexorably undermining the power of the state and making ruler Kim Jong-Un more vulnerable over the longer term. What role does the economy play in the outcome of today's nuclear standoff? Professor and author Byung-Yeon Kim explains to Dan and Scott.