Smoking marijuana causes lung disease just like tobacco. The people have not been smoking it for 50 years to prove it. Many people probably have already died from lung disease from smoking marijuana. But many of these marijuana smokers also smoke tobacco making it hard to prove the marijuana smoke killed them. Today many people are quitting smoking and are smoking marijuana only. When they get lung cancer from smoking marijuana the marijuana advocates should be charged with first-degree premeditated murder. They knew smoking marijuana could be just as bad as smoking cigarettes as far as lung cancer and they advocated smoking marijuana for profits, therefore not only should they be charged with premeditated first-degree murder we should seek the death penalty for these people. Tobacco companies got away with killing 500,000 Americans a year, the automobile industry kills 40,000 Americans a year, we can’t let the marijuana industry get away with killing even one American, we have to stop them now.