Happiness: Is It Time To Stop Being So Careful?

This week on The Science Revolution. About that happiness-- is it time to stop being so careful? Is spontaneity the key? And Professor Janice Brahney is here on "plastic rain" pouring down in national parks and everywhere. Plus- Tony Corbo with Food and Water Watch drops by to warn Americans the USDA is trying to outsource chicken processing to China and what that means....