One of the strangest use of semantics there was.
Agent Orange is from the same chemical family as "round up" herbicide. What made agent orange different was that it was contaminated with dioxin, a powerful poison.
When it came down to it, the VA didnt see a product that was used all over the US at that time as causing the symptoms and problems claimed by the vets. so they poo-pooed all the claims initially.
The Army soon realized it was contaminated with dioxin, and kept its mouth shut. they then started systematically destroying the left over Agent Orange from vietnam real quickly on johnston island in the pacific.
its just like the current gulf war syndrome.
If we should have to fight, we should be prepared to do so from the neck up instead of from the neck down. General James H. Doolittle, USAAF