51.   Q. Is a UPS or FedEx jet less susceptible to hijacking than a commercial airliner?

52.   Q. How fast does a space shuttle go compared to a commercial airliner?

53.   Ridge said, for example, that he would not be the official to decide whether the military should shoot down a commercial airliner that behaved suspiciously.

54.   Security was obviously lax because the suicidal highjackers were able to bring knives and perhaps other weapons aboard the commercial airliners they took over.

55.   She awoke to the news that a commercial airliner had crashed into the World Trade Center.

56.   She simply is not free to wander the New York countryside or fly the skies on commercial airliners without official protection.

57.   Some of those areas are set aside exclusively for military use, but in most, military aircraft mix with commercial airliners, though at different altitudes.

58.   Some clients ship their dogs to Austin on commercial airliners for summer camp or training.

59.   Soon, though, word came that the tower had been hit by a commercial airliner.

60.   Thanks in large measure to Frank Lautenberg, smoking on commercial airliners within the United States is against the law.