A security breach at Detroit Metro Airport Thursday night has caused a lockdown at the McNamara Terminal. The Transportation Security Administration says a passenger exited the terminal through an exit lane. He then decided to return into the terminal and forced his way back in while ignoring the instructions of the TSA officer standing nearby. Source The picture below is troubling to me for a couple of reasons: - It shows people being herded like cattle. - If there were a true emergency, such as someone shooting up the place, some people will be stuck.