Originally Posted by eyecue
The short answer is that the vendor at the concourse is supposed to have an inventory and accounting of all the things that they have to have in order to conduct business. They are audited occassionally to see if they are keeping their stuff secure.
"Audited occasionally", huh? How often? I guess that is SSI. Very comforting to us passengers.
However, knives should not be a major concern now. As long as flight crew follows SOP, terrorist(s) would not gain control of airplane. Several people may be injured or killed, but passengers would not allow even a few terrorists armed with only knives to do any more than kill those within arms' reach. No problem except for those unlucky few within arms reach.