I heard it too. It is another example of how absurd we can be when we are trying to do the right thing.
There were not 3 men of different races out in that rubble looking for a flag to pose with. While there were different races working like dogs out there (and some dogs too
), exposing themselves to all kinds of environmental contaminants, those 3 white men happened to find the flag and raise it. It is reasonable to assume that they might have remembered the photo or the memorial of the flag raising on Iwo Jima, and positioned themselves for what they knew would be an historical photograph. But---who cares? They were there, doing what we couldn't, and they were 3 white men.
Let them make the statue of bronze, as has been suggested, such as the Vietnam Veterans and Vietnam Nurses Memorials are made of. We don't ever want to forget that horrible day.