Only a propagandist would believe that holding burning smoke in your lungs as long as you can would not be harmful.
The NIDA (National Institute on Drug Abuse) shows several references for cancer claims. Read about
If you want to talk harm, it is simple. The harms come from the laws. That is what everybody is trying to get through to the television minds and authority worshipers. Go down to the courthouse or jail and ask someone how the law messed up their life. Everyone that buys cannabis gets robbed because of government policy which is the greatest of tyrannies no matter that some are blind to the fact.
Well yes, generally if one breaks the laws of the city, state or country in which they live their lives are going to be "messed up". That's a no-brainer. The fact that pot smokers will insist on breaking the law to support their habit is a clear indicator that it's not as harmless as many insist.
This NIDA articlefootnotes several links to research that apply to marijuana and its relation to cancer.
So a little harm is to wipe out great benefit and inflict unbelievable harm with the tyranny of unjust laws.
So why isn’t tobacco use a life sentence. Like if you are a prohibitionist why don’t you have priorities.
You are really helping the cause of Free Cannabis. Just keep talking.
When Dr. Grinspoon set out to research cannabis as a young doctor at Harvard, he wanted to give the stoners at Harvard the low down on how big and bad cannabis was. He found out it was not big and bad at all but a great medicine. You really should break down and listen to a medical researcher on cannabis and this link is for you: http://rabble.ca/podcasts/shows/living-purpose/episode-127-lester-grinspoon-md
I hate to tell you this but you are arguing absurdities. You are a riot.