Marijuana is a very debated topic as of late. Unfortunately, websites that offer information on the substance, including websites run by our government, are presenting misleading information from studies that have been shown to have been improperly carried out or biased. None of which present THC's anti-cancerous properties as well.
Some of this may be found at
http://www.whitehouse.gov/ondcp/frequently-asked-questions-and-facts-abo...