The key that locks the door against terrorists also opens a wider gate to cross-border trade and travel.

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This is an important advantage to have, because the willingness of the TSA agent, gate agent, and flight attendants to play along are all key to the successful transport of your check.

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We told them to not leave their garage doors open, and not to make copies of the outside pedestrian gate key for the legions of maids and gardeners who descended on the complex every morning.

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