For hazmat driver Ben Moorhead, a grueling workday starts at the crack of dawn. Here, he walks us through what it's like to transport oil for a living and the science involved in safely testing his precious cargo.

We sit down with Lonnie Bunch, the director of the National Museum of African American History and Culture, to hear his personal recollections of the events following MLK's assassination.

Curator Deborah Willis describes the National Museum of African American History and Culture's first exhibit.