Drugs: Pot: Safer than Alcohol?

More Americans than ever are turning on with marijuana. Most of them are under 21, but an astonishing number of respectable adult citizens are also using "sticks" or "joints" or "grass." Obviously no one knows the total, since possession of a single cigarette is a crime. But Commissioner James L. Goddard of the U.S. Food and Drug Administration cites estimates that as many as 20 million Americans may have used marijuana at one time, while 400,000 some say as many as 3,000,000—may now be smoking it regularly.

The vast majority of users declare...