This is why just doing this at the state level is not enough. This story by NPR is really good: http://www.npr.org/blogs/money/2013/05/07/182010027/episode-45

This is why just doing this at the state level is not enough. This story by NPR is really good: http://www.npr.org/blogs/money/2013/05/07/182010027/episode-456-marijuana-arbitrage http://www.npr.org/blogs/money/2013/05/07/182010027/episode-...