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-->>>> back in this country now, the era of shoes off and belts off travel may be coming to an end for more the most frequent fliers at more of the nation's busiest and biggest airports, including some of the airports where the 9/11 attacks were launched in the first place. nbc's tom costello is at reagan national airport with us tonight with more details on this. tom, good evening.
>> reporter: hi, brian. this is really an expansion of an existing tsa program in which elite frequent fliers, specifically on american and delta, give their information to the tsa in advance, and that allows them expedited travel through the security lanes at just seven airports. what we can tell you, they are now looking at expanding that, specifically by year's end united as well as alaska and us airways will join in at least 28 of the nation's busiest airports, and as you mentioned, somewhere 9/11 hijackers originated, and they will also be in this program. passengers who opt in and are selected for precheck on that flight by the tsa may be directed then to a special screening lane.
>> they will undergo expedited screening. this could include no longer having to remove shoes, laptops, jackets or belts.
>> reporter: as we mentioned, a total of 28 airports by the end of the year, a full list of all those airports on our website, but brian, again, this is an expansion of the tsa's precheck program. it has been for elite program travelers, now it's going to be everybody.
>> tom costello, thanks.
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