<font face="Verdana, Arial, Helvetica, sans-serif" size="2">Originally posted by Tyler Durden:
I think they search upon arrival because people could get on another plane at their destination airport.
</font>
This whole thing is based on an assumption that there are terrible people all over the place trying to get on planes (or even in parking garages) to do terrible things. Yes, this has happened, but the reaction is overkill. There have been more situations of people walking into businesses with guns and going beserk than airlines, but we have not locked them down have we?