How to save life on Earth, according to E.O. Wilson

Biologist and Pulitzer winner E.O. Wilson has spent his life studying animals and fighting for their conservation. As species go extinct at 1,000 times the normal rate thanks to human interference, Wilson’s new book “Half Earth” holds a bold plan to preserve the world’s biodiversity: set aside half of the entire planet for natural habitats. Jeffrey Brown talks to Wilson for more.