The Department of Justice recently took the extraordinary step of releasing a previously confidential memo from its Office of Legal Counsel concluding that DEA’s long-standing policy on marijuana research violates federal law and U.S. treaty obligations. Why did DOJ do this? What does the memo mean for the future of marijuana research? In this podcast, Matt Zorn and Shane Pennington, the lawyers who litigated this case, explain how they got DOJ to release the memo and what it all means.…