11.   Some observers believe a catastrophic accident on this mission would produce a national sense of gloom every bit as powerful as the current exhilaration.

12.   The contributions have come in as Congress works on reauthorization of the Price-Anderson Act, which limits liability in the event of a catastrophic accident.

13.   The foundation is a Washington-based nonprofit organization that aids sleep-deprived Americans and aims to prevent catastrophic accidents caused by lack of sleep.

14.   The oil industry founded the Marine Spill Response Corp. in Port Hueneme in Ventura County to deal with catastrophic accidents.

15.   The system, which the pilot can deploy in a catastrophic accident that prevents the plane from flying, allows the aircraft to drift back to Earth.

16.   Those came as standard equipment on many Ford Explorers, which have experienced catastrophic accidents involving tire failure, and some other SUVs and pickups.

17.   Catastrophic accidents have been frequent.

18.   In the case of a robbery or catastrophic accident, a toll worker can summon police with a distress code using the phone system.

19.   The number of airplanes, vehicles and people on runways continues to grow, and the head of the National Transportation Safety Board says a catastrophic accident could result.

20.   They only cover catastrophic accidents.