New York Times science and health reporter Donald. G. McNeil Jr. predicts that 2016 will be the worst for Zika transmission in the U.S. "After this year, a fair number of people will be immune, and ... immunity will grow," he says. Also, we remember Michael Herr, whose 1977 book 'Dispatches' was based on his experiences covering the Vietnam War. He contributed to the films 'Apocalypse Now' and 'Full Metal Jacket.' Herr died last week.