21.   Instead he packed it with his checked luggage.

22.   Instead of making passengers submit to trial by checked luggage, the airlines ought to provide ample baggage storage space in the passenger cabin.

23.   InVision said airports would first use the machine to inspect checked luggage.

24.   It also takes steps towards inspecting all checked luggage and matching passengers with their bags.

25.   It also urged requirements for airports to match passengers to their checked luggage.

26.   It would also take steps towards inspecting all checked luggage and matching passengers with their bags.

27.   Logan International Airport Monday became the first airport in the nation to receive federal approval to build an elaborate and expensive system to screen all checked luggage for explosives.

28.   Meanwhile, some improvements that experts consider fundamental, like closer screening of checked luggage, remain in limbo.

29.   Many travelers present blanks for purchases that are in their checked luggage, and this usually works.

30.   Most major airlines have changed their policies on flying the pets as checked luggage after a number of incidents involving animal deaths or near deaths on domestic airliners.