Given the fact that there are two choices when dealing with legacy weapons, the destruction route is the most logical. the other choice would be to leave the weapons in place, which would be more hazardous by far. chemical warheads contain agressive chemicals, which eventually eat through their containment vessels. In inspections prior to the destruction of the weapons on Johnston Atoll there were several found to be leaking. I'd rather see them destroyed on site in a controlled process than either left in place to rot or even worse transported somewhere, which would leave too many opportunities to lose control of them.