IMO there is a compelling need for federal funding through the NIH on the many facets of "Medicinal Cannabis"...it is here to stay, can be very beneficial and needs to be dealt with intelligently...as opposed to the current subjective approaches that lead to unwarranted harm (e.g. the Alabama arrest depicted in the video)...
...as for 'Recreational Use', I have no problem with it other than a concern for what happens when users interact with others in situations where cognitive impairment could cause harm (e.g operating any vehicle)...serious studies need to be undertaken to establish acceptable levels of THC "intoxication".
btw, it was interesting to hear one researcher speak about our bodies' different reactions to cannabis throughout our life-cycle...in my 20's I enjoyed a few experiences with MJ, but now I'm just fine with a good book, or streaming series...go figure ;-).