In their heyday the Pet Shop Boys were the Interpol of the Eighties dressing up to sing really weird pop songs about lust and loneliness in the big city. They're low-pro now not retro-worshipped in the manner of Depeche Mode New Order or The Cure but you can hear the reason why - these guys are too sad.
To my knowledge the Department of Homeland Security has focused on detection devices that are large expensive use a large amount of energy and cannot easily be placed in or on a shipping container.
