21.   In preparation for the influx of VIPs, Swiss police mounted a huge security operation, screening passengers arriving at Zurich airport and at small local runways.

22.   Other airline officials, and the companies that screen passengers, said any warnings they got did not contain a specific threat that would prompt action.

23.   Police searched the plane and carefully screened passengers, causing a nearly two hour delay.

24.   Security officers screen bus passengers with handheld metal detectors.

25.   The FAA is developing new rules for security companies to follow in training workers who screen passengers at airport security checkpoints.

26.   The Transportation Department is foolish to tell airport screeners not to consider some racial and ethnic factors when screening passengers, Keating said.

27.   To screen passengers, aviation authorities are considering biometric scanners that check identities against criminal records and terrorist watch lists, Charles said.

28.   Transportation Security Administration spokesman Paul Takemoto said the new agency is looking at new technology to help screen passengers.

29.   Vehicles will be checked, and bus passengers will be screened.

30.   Freetown authorities forbade the vessel from docking, saying they first wanted to screen the passengers.