As you all know, Dr. Sanjay Gupta is pro medical marijuana, and has done 2 documentaries now on CNN, which I'm sure most have watched.. In case you haven't .. Weed (http://youtu.be/Z3IMfIQ_K6U) , and Weed 2 (http://youtu.be/tAFu-Ihwyzg) He recently did an AMA (Ask Me Anything) on Reddit, and did a great job.. Check it out if interested: http://www.reddit.com/r/IAmA/comments/205beo/i_am_dr_sanjay_gupta_neurosurgeon_and_chief