As efforts to improve airport security in the United States are examined, the use of information technology to integrate multiple sources of personal data on travelers into a security background check application are attractive alternatives. "These applications can be built in a way that does not compromise the privacy of innocent citizens," says Michael Erbschloe, vice president of research for Computer Economics and coauthor of "Net Privacy: A guide to developing & implementing an ironclad e-business privacy plan."

"Passenger screening can certainly be enhanced by providing security personnel with access to records from multiple law enforcement agencies around the world as well as information on travel patterns which may be available in the databases of airlines," says Erbschloe. "However, openly providing security personnel with personal information about private citizens is a gross violation of privacy and will end up being just another nightmare."

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