Greg & Tom continue their conversation with Melanie Joy, founder & president of the Carnism Awareness & Action Network. Carnism is an invisible belief system that blocks empathy over the eating of certain animals. She talks about why the thought of eating a horse or a dog is often reprehensible to many of us who don't think twice about eating beef or pork. She also talks about false projections that carnists may hold against vegans & vegetarians, but also about the false projections vegans & vegetarians may hold against each other. Joy encourages all of us to live with the 4 "C's" - Curiosity, Compassion, Clarity, and Courage - and to interweave them into our lives to make us more compassionate creatures. Aired Feb. 24, 2013.