​How mushrooms can save the world

Tonight’s “Big Picture Rumble” discusses the DOJ probe into the Ferguson PD, the GOP’s latest move in their war on voting and the ruling that BP was “grossly negligent” in the Gulf oil disaster. In tonight's “Conversations with Great Minds" Thom talks mushrooms with Mycologist Paul Stamets, author of the book “Mycelium Running: How Mushrooms Can Help Save the World.”