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NBC investigates security at major airports in the United States an reveals that even sine the Locherbie tragedy, not much has changed in terms of internal security at airports. In some cases no background checks are done in advance of hiring, and employees without the specific authorizations to do so, are many times free to roam the airport with unlimited access to baggage areas, tarmacs, and even the aircraft themselves. (Nov. 26, Dec. 8, 1996)
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