Audio

What would a world without national borders look like? There's a good chance it'd look very similar to the one we have today. Parag Khanna is a global strategist who believes borders are becoming irrelevant in an increasingly connected world. More than national boundaries, he believes what matters are the connections between cities.

Saul Williams has been hailed as hip hop's poet laureate. He talks with Anne Strainchamps, and we hear some of his work.