E-cigarettes are making tobacco obsolete. So why ban them?

If somebody invented a pill that could cure a disease that kills five million people a year worldwide, 100,000 of them in this country, the medical powers that be would surely encourage it, pay for it, perhaps even make it compulsory. They certainly would not stand in its way.

A relentless stream of data from around the world is showing that e-cigarettes are robbing tobacco companies of today’s customers — and cancer wards of their future patients.