civil liberties and leader of i-502 the ballot that legalized marijuana in washington state and jonathan seagalorgia washington law school and former attorney at the u.s. department of justice and specializes in the relations and jonathan calkins and professor after carnegie molon and talked about marijuana legalization and let me start with you in pittsburgh, this is not a single variable problem, is it, when something has been illegal for a long time and a lot of government resources have been dedicated to enforcing that, it's not as easy as just throwing a switch and saying, no, you can do it now, is it? >> no, you are exactly right. there is a lot of complexity. and it's further complicated by the fact that nobody has ever done this before, no modern jurisdiction had ever legalized a large skull commercial production and distribution, all that had been legalized anywhere else is personal possession and use or in the case of the netherlands retail sale of 5 grams, uncharted territory and things to be worked out. >> guidance from prohibition and making something legal again that once had been