FILE - In this Wednesday, Nov. 7, 2012 file photo, a medical marijuana plant grows at the Northwest Patient Resource Center medical marijuana dispensary, in Seattle. Votes this week by

 

              FILE - In this Wednesday, Nov. 7, 2012 file photo, a medical marijuana plant grows at the Northwest Patient Resource Center medical marijuana dispensary, in Seattle. Votes this week by
FILE - In this Wednesday, Nov. 7, 2012 file photo, a medical marijuana plant grows at the Northwest Patient Resource Center medical marijuana dispensary, in Seattle. Votes this week by Colorado and Washington to allow adult marijuana possession have prompted what could be a turning point in the nation's conflicted and confusing war on drugs. (AP Photo/Ted S. Warren, File)