MJ OD?

According to the DOJ and the DEA, it's virtually impossible.

From The Daily Dish...

A Department of Justice/DEA brief from 1988 reads:

[A] marijuana smoker would have to consume 20,000 to 40,000 times as much marijuana as is contained in one marijuana cigarette. ... A smoker would theoretically have to consume nearly 1,500 pounds of marijuana within about fifteen minutes to induce a lethal response.

So exactly why is the Obama administration continuing the war on medical marijuana?