Whose fault is it that we "barely understand the long term effects"? Clearly, the war on drugs is the very reason why scientists have been unable to study the b

Whose fault is it that we "barely understand the long term effects"? Clearly, the war on drugs is the very reason why scientists have been unable to study the benefits (or side effects) of these drugs for so long. There are signs that is finally changing (with the JH research center), but we've lost decades to something we could've understood so much better by now.