I'm not sure, you'll have to look into that and let me know as I'd be interested to know about that myself.
The issue is I had was with the use of the word "blind". As if cannabis was a new and unknown substance. While I've no doubt we've a lot more to learn about cannabis to say we're "blind" is disingenuous at best.
Exactly, so "blind" really isn't the best descriptor of our understanding on cannabis, by the looks of it we're quite informed.