Last night on NBC, Brian Williams was showing inside the Dome when the top pulled off; it wasn't quite as simply as flapping "skin."
Whole HUGE chunks of the roof fell into the Dome, right where the people were sitting; then rain fell in torents through those holes.
CNN: John Zarrella reports on satellite phone from a hotel in New Orleans - Water is still rising and is heavily contaminated. Situation is markedly worse than this morning. His hotel is near Superdome, where he can see those rescued from their homes are being taken.
I saw that, too.
Water was POURING IN.... not TRICKLING IN, as they led us to believe.
Two panels came off, one inspection hatch (and part of the fabric "skin") fell inside.
The dome is still structurally sound and the engineers (who were under the thing and still are) are not worried about it at all.