How do you build a museum from scratch...that encompasses 400 years of African American history? How do you get it to tell hard truths, without making it a completely depressing experience for visitors? And how do you do it in a politically charged time, when the African American experience continues to shift and change? You talk to Lonnie Bunch. He explains how he managed to pull it off in his new memoir A Fool’s Errand: Creating the National Museum of African American History and Culture in the age of Bush, Obama, and Trump