From a comment I made here. (revised and edited)

Thing is, Drug Prohibition was built on a similar tissue of lies but previous to the Global Warming scam. The lies have been similarly debunked. But Prohibition lives on.

Maybe they (the Powers) thought – “well if we have pulled this off, we can pull that off as well” CAGW and the Drug War are mirror images of each other.

At the street level each side is convinced of the sanctity of its motives and the perversity of the opposition.

And at the top? It is all bankable. Think of the Drug War cash flows. Think of Al Gore’s cash flows.