Originally Posted by exerda
This has been going on for some time at certain restaurants ... Outback has had them IME at a number of airports. I don't know if they are watching to make sure you return your knife (and will cause a terminal dump if you manage to abscond with one

)... but more importantly, the kitchens have even bigger and sharper knives, so all a would-be terrorist would need to do is get a guy hired there, or bribe or befriend someone there.
One enormous hole in the TSA/airport security system (how about using the abbreviation "..."

) that is apparently less important to the powers-that-be than making sure passengers' shoes and feet are thoroughly screened. But Ma and Pa Kettle would not see security measures that do not affect passengers. Kabuki security.