Airport Security Unplugged

For all the high-tech security gear that is making life more complicated for air travelers, sometimes it's the smallest things causing the biggest headaches. Last week Boston's Logan became the fourth airport in as many weeks to be temporarily shut down because a screening machine was unplugged. Even more annoying, the problem can be solved by a simple $29.95 piece of hardware. After one such disruption two weeks ago, an airline-industry executive went to Home Depot, bought a device that locks a plug into an outlet and gave it to an official of the new Transportation Security Administration. Rather than buy...