I remember Geraldo in Iraq drawing in the sand where US troop movements were (heading north). My son was in that 100 mile long convoy that got trapped in the gigantic sandstorm.
Geraldo, as I recall, got kicked out of the country for that. If he had done that to us (journalists) while in Vietnam, I would have asked our ARVN hosts to show him the Ham Luong River, from the bottom. Fish gotta eat, you know.