Why roads and trains may be key to bringing peace to the Korean peninsula

North Korean leader Kim Jong-un left his historic Singapore summit with US President Donald Trump last month with a massive political victory in hand, but questions remain how this will help his isolated country in pragmatic terms.

A Japanese newspaper reported Sunday that Kim has asked Chinese President Xi Jinping for his help in lifting the sanctions that have crippled the North Korean economy. But even if sanctions are lifted, will this be enough to improve the standard of living for North Korea’s impoverished citizens?