"Cheap things can never stay cheap for long, in the end those costs always catch up with you," says the award-winning writer, activist and academic, Raj Patel, co-author of the new book "A History of the World in Seven Cheap Things." Food is one of those seven things that become cheapened when subjected to capitalism. Plus, Raj discusses what Jeff Bezos and Christopher Columbus have in common, among other things on this week's episode of Rootstock Radio. Listen in!