One of the covers of Smithsonian Magazine's 'Black In America' issue.

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One of the covers of Smithsonian Magazine's 'Black In America' issue. / Smithsonian Magazine

We've talked a lot on the show about how activism has changed in this country. We've heard from civil rights leaders from the past and present. The new National Museum of African American History and Culture tells their story. It's unveiling coincides with this month's issue of Smithsonian Magazine called "Black in America." Editor-in-chief Michael Caruso talks about the issue, and one article that focuses on black Twitter.