Hartsfield-Jackson Atlanta International, the world's busiest airport, offers "Trak-a-Line, " a service that e-mails passengers when there is a change in wait times for security screening.

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If you are a customer and get such an e-mail, call your bank on the service line listed on your monthly statement and report the attempted theft.

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Because DirecPC is still tethered to phone-line modems for Web page and e-mail requests, I must dial into my regular Internet service provider to get started online.

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