The Why Behind Air Security



Traveling by plane in the USA, especially in the wake of the disrupted London airliner bombing plot earlier this month, looks nothing like it before the 9/11 attacks. Liquids or gels aren’t allowed in carry-ons (with a few exceptions). The rules have adapted to emerging threats (remember when nail files were forbidden?). Shoe removal is required at every airport. Air marshals have become frequent fliers, and your pilot might be armed with a gun.

The government also moved to centralize the defense of the nation with the creation of the Department of Homeland Security. Its secretary, Michael Chertoff, discussed air security and other issues with USA TODAY.

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