For half a century, the federal government has treated marijuana as one of the more dangerous drugs in the United States. On Tuesday, the Biden administration signaled a significant shift in approach.Zolan Kanno-Youngs, a White House correspondent for The Times, explains how big an impact the proposed changes could have.Guest: Zolan Kanno-Youngs, a White House correspondent for The New York Times.Background reading: 

• The Biden administration’s effort to liberalize marijuana policy comes as increasingly more Americans favor legalizing the drug.
• After the recommendation to ease restrictions, Democrats in the Senate reintroduced legislation to legalize marijuana.

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