Another great protest from the year of my birth. On October 27, 1967, about fifty thousand people (mostly young, mostly white, mostly hippies) marched to the Pentagon to protest the war in Vietnam. Their aim was to make the Pentagon float by bombarding it with love and peace. It didn’t work. But photographer Bernie Boston took a famous photo he titled “Flower Power” as a young man stuck the stem of a flower into the barrel of a rifle pointed at him.