To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 video Share Embed Share URL Video File Node URL Embed Code <iframe title="MRC TV video player" width="640" height="360" src="https://www.mrctv.org/embed/133894" allowfullscreen></iframe> DEA Chief: Majority of Heroin in U.S. Comes From Mexico See More at: http://cnsnews.com/news/article/penny-starr/dea-chief-majority-heroin-us-comes-mexico