10/21/14 - Tuesday's Topical Currents looks at the world’s biggest public health crisis. No – not more information about the Ebola virus. We talk human waste disposal. Four in ten people in the world lack what you and I take for granted: a toilet. That’s nearly three-billion people who use crude latrines or open ground. Human waste contributes to one-in-ten of the world’s communicable diseases. We speak with journalist Rose George about her book, THE BIG NECESSITY: The Unmentionable World of Human Waste and Why It Matters. That’s Topical Currents . . . today at 1pm 91.3 WLRN-HD1.