Anonymous of Course: Thanks for the context about that picture. If the photographer had shown the same man holding his grandson who had been killed by the Viet Cong, history might have been different.

The US military remained in Vietnam for more than 5 years after that photo was published. Whatever people in America may have felt when seeing that photo and other news out of Vietnam in early 1968, it didn't really change the course of the war, and those who turned against the war found plenty more reasons to do so after Feb. '68, anyway.