this is a photo of jerry signfeld arriving at the white house to interview president obama. souza takes hundreds of thousands of photos each other capturing major moments in history as well as capturing glimpses of life in the white house. an exclusive interview with the man behind the lens. reporter: they are unique, behind the scenes close up images of the president. many never seen publicly until now. serious matters inside to the white house. a first daughter drops by the oval office to see her dad. a president with an aide s twin sons. i probably take between 500 and 2,000 a day.