cannabis and brain tumors

dont know if this has come up yet but maybe some peeps are interested?
news.bbc.co.uk...
i know i am...what u all think is this the only case or is there more?

ya, so they'll take the poor cannabis plant, break it down, take out that one little ingredient in it...mix it in with alot of other chemicals (toxins) and throw it on the market...and then wonder why it kills people..

but the poor plant will still be illegal....even if it is more effective.