Benefit versus risk should be the test with taking any drug/intoxicant for "therapeutic" purposes.

"Numerous studies have shown marijuana smoke to contain carcinogens and to be an irritant to the lungs. In fact, marijuana smoke contains 50-70 percent more carcinogenic hydrocarbons than tobacco smoke. Marijuana users usually inhale more deeply and hold their breath longer than tobacco smokers do, which further increase the lungs' exposure to carcinogenic smoke."

And then there is the risk of being in a constant stupor....while driving, while parenting, while working in a responsible job, and while attempting to get and maintain consistent, self-supporting employment.

And this is laughable: "Of course this will not be seen as politically motivated in an election year to cater to the youth vote."

Stoner Nation here we come.

National Institutes of Health (NIH):
Marijuana | DrugFacts | National Institute on Drug Abuse