This is Sabet's latest attempt to paint criticism of the war on drugs. It is his Goldilocks-and-the-Three-Bears triangulation of the war on drugs as "too hard," the legalization of marijuana as "too soft," and the emphasis on treatment and prevention as "just right."
SAM stands for "Smart Approaches to Marijuana" and it represents a radical shift in tactics by those who seek to maintain marijuana prohibition. (I like to call it "Project SAMUEL" -- Smart Approaches to Marijuana Use... Except Legalization.)