IE 11 is not supported. For an optimal experience visit our site on another browser.

Washington to put marijuana legalization to real world test

Tony Dokoupil, senior writer at Newsweek and The Daily Beast, talks with Chris Hayes on the eve of the legalization of marijuana in Washington State about the many previously-only-hypothetical issues that will have to be faced, from the conflict with federal law, to questions of regulation, to the overall social impact.