Swine flu: a look back on the crisis that wasn’t

What have we learned from the swine flu crisis that wasn’t? Joan Nichols, associate director of research at the Galveston National Laboratory at the University of Texas Medical Branch, and D.A. Henderson, public health expert and co-author of “Smallpox- the Death of a Disease: The Inside Story of Eradicating a Worldwide Killer,” share their differing opinions on what we did right and what went wrong.