I can't believe that the Nick Ut photo of Kim Phuc and the photo of the baby crying after the Rape of Nanking were not included in that list.
Interesting that Man Ray was included. I never thought of him as being that important...although I did know that he was quite influential to photography. That photo is often replicated by students of photography. I personally like his experiments in solarization. No stinkin' Photoshop there!