1.   The move raised questions over the issue of control in aircraft charter arrangements, which several airlines operated with Vietnam.

2.   The government will require sensors that can detect plastic explosives at busy American airports and at busy foreign airports where American airlines operate.

3.   As a result of a fierce price-cutting war, only two airlines are currently operating domestically, down from eight a couple of years ago.

4.   Airlines always operate without much of a financial cushion because of their high fixed costs.

5.   Airlines were operating at about two-thirds of their normal flight schedules on Sunday.

6.   During the year-and-a-half delay before the airport opened, the Palestinian airline operated on a limited basis out of El Arish in Egypt.

7.   Executives have said the two airlines will operate separately but coordinate flight times, the purchase of supplies and leasing of airplanes.

8.   He also pointed out that the airlines are operating at the highest capacity in years and thus have do not have many surplus seats.

9.   Instead of absorbing a competitor, these alliances allow two airlines to operate as separate companies but without competition between them.

10.   Industry experts generally share the view that airlines can operate more efficiently when moved from government hands to private ownership.