'Promising' new initiative to halt weapons flow from US sellers to Mexican cartels

Mexico and the US have launched a new bilateral initiative aimed at disrupting the stream of illicit weapons across their shared border. The announcement came during the first meeting of the new US-Mexico Security Implementation Group. Leon Castellanos-Jankiewicz, a senior researcher at the Asser Institute at The Hague, tells The World's Host Marco Werman why the initiative will be difficult to implement.