We have always been a nation of drinkers — but now there are more daily users of cannabis than alcohol. Considering alcohol’s harms, maybe that’s a good thing. But some people worry that the legalization of cannabis has outpaced the research. (Part one of a four-part series.)

SOURCES:
- Jon Caulkins, professor of operations research and public policy at Carnegie Mellon University.
- Yasmin Hurd, director of the Addiction Institute at Mount Sinai.
- Michael Siegel, professor of public health and community medicine at Tufts University.
- Tom Standage, deputy editor of The Economist.
- Ryan Stoa, associate professor of law at Louisiana State University.

RESOURCES:

EXTRAS:

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