What an absurd cock-up. In the age of almost limitless computer power, how could they not maintain data bases to coordinate information and red flag a problem? His father reported he might be a threat. He paid CASH for a $3000 airline ticket. He was barred from entering Britain because he claimed to be attending a fictitious university. Had a US visa.

In the 70s, when hijacking was fairly common, anyone who paid cash for a ticket was searched, questioned and sometimes barred from getting on a flight.

According to one news report, the US paid for and installed four body scan devices for use in Nigeria's international airports. They are not being used.

There was NO AIR MARSHALL on the flight.

LOL But we are all safe because after Sept 11, if anyone acts oddly on a flight, the passengers are prepared to kick the shit out of them. Thank goodness someone is using some common sense.