The Lockerbie bombing, supposedly by Libyans created the increased airport security measures we now have to put up with.

The bomb in the shoe incident was responsible for you having to remove thick healed shoes for xray.

Bin Laden et al might be responsible for the authorities' occasional changes in security alert levels but thats about all.

With or without security you still have 100 times more chance of being run over by a car than being involved in a fatal airplane incident.