Carl Henn III has visited and worked in 29 of Africa's 54 countries resulting in opinions about travel, national images, public health, trust in science and more.   <p>His book, "My Two Centuries in Africa," is available on Amazon, and soon will be promoted in towns across America as Carl again embarks on a trip.  (The resulting new book might be called "Man in a Van.")  </p>

The Epidemiologist

Distribution of goodies in our society is determined by families, firms, and governments. Attempts to change how rewards and punishments, benefits and costs, are spread through the population cause conflict. The hosts are an economist, Morton Marcus, and a financial advisor, John Guy. Expect whimsy.