Scientists want to study marijuana. Big Pot just wants to sell it.

"The cannabis industry, with a capitalization in excess of $4 billion, has embraced the free market. Its opponents, such as Smart Approaches to Marijuana, counter that unfettered legalization means another Big Tobacco. The danger is that “better products” (mostly high-THC pot and more seductive ways to deliver it) will produce more addiction, accidents, psychoses and cognitive deficits, particularly among daily users who account for the vast majority of sales. When the core business model is phishing for phools by exploiting misinformed buyers, more research is not necessarily welcome. If rescheduling produces additional studies confirming that regular cannabis use causes abnormal brain development, memory impairment and diminished IQ, the drug would look more like lead exposure than a harmless party plant."