31.   Other provisions of the bill call for the inspection of all checked baggage, the reinforcement of cockpit doors and a significant increase in the number of sky marshals.

32.   Rep. Christopher Shays, R-Conn., said the law provides a year for all checked baggage to be specifically screened for explosives.

33.   Screening every piece of checked baggage loaded aboard airliners for explosives would be costly and result in crippling delays at U.S. airports, airlines say.

34.   Salt Lake City Airport is the first airport where the devices are being used on all checked baggage, airport spokeswoman Barbara Gann said.

35.   Stronger, more efficient X-ray machines are being used to screen more checked baggage.

36.   The Air Line Pilots Association called for screening cargo and checked baggage to prevent bombings and warned of other security concerns.

37.   The bill also calls for the inspection of all checked baggage, an increase in the number of sky marshals and the reinforcement of cockpit doors.

38.   The carrier still handles checked baggage at the airport.

39.   The bill also calls for the inspection of all checked baggage, the reinforcement of cockpit doors and a significant increase in the number of sky marshals.

40.   The deadline for airlines to screen all checked baggage arrived, without, at least at first, the feared delays and disruptions.