Posted: 08/17/09

The 9/11 terrorist attacks on New York and Washington DC in 2001 had far-reaching implications for global security. We all remember some of the extra security measures that were introduced in the aftermath of the attacks, like the snaking queues at baggage controls at airport check-ins and the high-profile police presence in our cities.

Part of the reason that the 9/11 hijackers were...