Imagine a USB hub with an apocalyptic button on it. How many of you had imagined such a thing before I suggested it? You lot worry me sometimes.[El Reg]The unit - which conveniently doubles up as a four-port USB hub during peacetime - is equipped with a launch key, suitably military-looking toggle switches and, of course, the big red button, tucked under a protective flap to avoid an accidental apocalypse.