In a major shift that would modify laws set half a decade ago, states and cities around the United States are moving to legalize psychedelics for use as a medical treatment.The sudden change of heart has a lot to do with who is asking for the substances.Guest: Andrew Jacobs, a health and science reporter for The New York Times.Background reading: 

• Lawmakers find it hard to “just say no” to combat veterans seeking support for drug decriminalization efforts.
• In January, Oregon became the first state to allow adult use of psilocybin “magic” mushrooms.

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