That's How It Happened

boingboing is probably the world's most popular blog, with an astonishing 25k visitors a day. It's always full of good links, including this fabulous FBI collection of concealed weapons. (2Mb PDF) I was just astounded by the magnetically invisible knives, the spring loaded spikes and the eXistenZesque japanese leaf knife. Disappointingly there are none of the fabled german ceramic guns. However even without invisible guns, it's clear that any fool, bent on a hijacking, could waltz onto a jumbojet packed to the gills with deadly weapons.