Pete Souza spent eight years photographing the Obama White House, an effort he now chronicles his new book Obama: An Intimate Portrait. Souza joins The Atlantic's editor in chief Jeffrey Goldberg to share the stories behind his most famous photos: a 5-year-old boy patting the president's head, the tense scene in the Situation Room during the mission against Osama bin Laden, and many more. What was it like to be a fly on the wall in the West Wing?(View the photos discussed here.)