21.   Politely but persistently, Trahan questioned the woman and searched her luggage, but found no evidence of drugs and told her that she was free to go.

22.   The questioning lasted for about an hour, and her luggage was searched as she watched on, helpless to stop them.

23.   There are long lines at many airports as more passengers are patted down and carry-on luggage is searched more closely.

24.   They are particularly agitated about a case in Cleveland in which an Arab-American and his wife have sued an airline because their luggage was searched.

25.   Those without identification will have luggage searched by hand.

26.   Traveller Diane Haschke, left, calmly waits for her luggage to be searched at the AirTran ticketing area at Hartsfield International Airport in Atlanta.

27.   Police searched luggage for forbidden political and religious material.

28.   Police searched luggage of droves of English fans arriving by train and were escorting them to their hotels, police said.

29.   Police urged people to look for unattended parcels in bars and public places and routinely search luggage loaded into buses.