Later today, the first African American president in US history, Barack Obama, and wife Michelle and two daughters, Malia and Sasha, will be taking up residence in the White House, a house built by slaves. The Capitol, too, was built by slaves, as was the Supreme Court. Last night, I spoke with Associated Press reporter Jesse Holland. He is author of Black Men Built the Capitol: Discovering African-American History In and Around Washington, D.C. [includes rush transcript]