alex, thank you. water surrounding the broken well in the gulf remain calm again today. they re increasingly confident about the new well cap. after days of watching, still no signs of any leaks. even with the flow of crude apparently stopped for now, a tremendous clean-up lies ahead. nbc s mark potter has the latest from the recovery efforts from pensacola beach, florida. it s almost as if they ve now figured out what seems to be a good stop gap in terms of the leaking oil. now the attention can go full board on the clean-up. reporter: the truth is with the well cap holding, no new oil is going into the gulf of mexico but there s old oil floating out there for miles and miles. we were able to get a fresh look at that on our flight with the u.s. coast guard. on a coast guard flight from mobi mobile, palm, to the deepwater