Out of Eden Walk: Djibouti and the Red Sea

In early 2013, National Geographic Explorer Paul Salopek began an epic walk, following the path of the first human migration out of Africa about 60,000 years ago. Host Carol Hills speaks with Salopek - now two-thirds through his global journey - about his experience walking through Djibouti and sailing through the Bab al-Mandeb Strait, the entrance to the Red Sea.