11.   But the trainers said that the gate agents pushed the problem down the line to the flight attendants.

12.   Children who fly solo are usually escorted to and from the plane by a gate agent.

13.   Delta says gate agents are told to use their discretion in such instances and should do so.

14.   Eventually gate agents will receive more training on how to appease angry and abusive travelers and prevent some from ever setting foot on the jetliner, he said.

15.   Frequent flier mileage is not usually given, although Ms. Palmer said that sometimes gate agents will punch the frequent flier number in for a traveler.

16.   Gate agents at Lambert Field in St. Louis said flights were being diverted to Kansas City, Mo., Wichita, Kan., and other airports.

17.   Gate agents will see the cards and then ask the passenger for a photo ID, whether they packed their own bags, or accepted anything from a stranger.

18.   Fuller planes mean that American needs more gate agents and other customer-service personnel, Crandall said.

19.   Gate agents for US Airways received instructions, Thursday.

20.   He just needed to know what to look for, so the computer system could tell the gate agent to pull the passenger over for a second look.