To the editor: Re: 'Marijuana has helped millions', letter to the editor, May 30, 2014. The letter writer debunks the myth that marijuana causes cancer. We can see proof of this when we look at pot smokers from the 1960s not contracting cancer. If you are a pot smoker this should be a relief and possibly support Justin Trudeau's endorsement to legalize pot. At the same time I know that smoking pot gives brain damage, but so does alcohol. If someone does not find pot they will resort to other drugs. This could be alcohol, or it could be crack cocaine or heroin. If pot is readily available then there is less chance of a drug dealer exposing you to the hard drugs. [continues 79 words]