As Samuel Jackson was once quoted while acting as a Marine unit commander our response in the field will be :
WASTE THE M$%HERF^&KERS .....
I can't help but wonder if that's what Sadaam is thinking. He's winning the diplomatic battle. Preemtively hitting these units, particularly the scuds should be an imperative of ours, but it's one we'd pay a diplomatic price for if it was a limited strike, in which case the diplomacy continues, rather than the start of a full scale attack.
It's risky for Sadaam, but it's a sensable gamble. Worst case we leave him alone and he achieves deployments impossible under fire, particularly the scuds.