SEN. KERRY: To extend that to one other area, it seems to me I heard reported yesterday that we're changing the engines on our helicopters I think something like every 50 hours or so, an extra- ordinary rotation as a consequence of operations in the sand. And I can remember when we were over there it baffled me how they operate for more than a day with the amount of sand kicked up on every single landing and so forth. It seems to me obvious beyond any need for argument of any kind that every day that goes by, each...