In 1988, Operation Ranch Hand scientist and Air Force researcher Dr. James Clary wrote to Senator Tom Daschle that “when we initiated the herbicide program in the 1960s, we were aware of the potential for damage due to dioxin contamination in the herbicide. However, none of us were overly concerned because the material was to be used on the enemy. We never considered a scenario in which our personnel would become contaminated with the herbicide.”