Back in August, I had the chance to photograph inside the CDC in Atlanta. The assignment, for Newsweek Europe, was to help illustrate a story about the efforts to completely eradicate polio. I was to take a portrait of Dr. Greg Armstrong (above), CDC incident manager, and photograph the Polio and Picornavirus Laboratory and the Emergency Operations Center. The whole thing was a bit stressful. It’s not everyday that I get to work in one of the most secure places on Earth, not to mention that I was only going to have a few minutes with Dr. Armstrong.