Well... I liked the entire thing. It's interesting to listen to the comment about how some people were used to being photographed and, as the NYT photo editor said, could look more spontaneous than some who weren't photographed often.
The camera seems to be a nice digital MF Hassy.
Granted, some people look terribly stiff... but I think it also shows their personality. Apparently, they were asked to stand and "look natural", so they are there, looking "natural" (according to themselves).
Some of Souza's photographs can be seen in the Chicago Trib newspapers. They also ran the story of his becoming the official WH photographer a few days ago. He clearly knows his métier...