Originally Posted by ph-ndr
I think you'll find nail files stemming from the same worries that were post 9/11, looking at the way the attacks were carried out and the "weapon" used. This way pretty much any object loosely fitting this description. This is as with other turning points in aviation security a completely reactionary method, and as numbers can tell, it seems tohave worked. People are aware that any number of strangely normal objects have been used in commandeering an aircraft, thus a long list of things have been prohibited, and this makes granny feel safe about flying.
But granny doesn't know that the "weapons" that were supposedly used to take over control of those planes were (not surprisingly) never banned after 9/11. "Priceless!"