What you gotta remember Gary is just how lax US airport security was.
Having grown up in Northern Ireland during the 80's and early 90's when the troubles were still on going, I got used to being questioned by security/Police everytime I wanted to board a plane even aged 7 or 8. Having my bag searched three times, and well... there was a reason we never took walkman's on holiday! This happened both in Belfast and when we landed on the mainland.
We also had our own wee departures lounges, for want of a better phrase read 'holding cells', where we had 2 or 3 police officers watching over us, one way in and one way out, if we were lucky one tiny shop selling cans of Coke and packets of crisps. TBH we were totally second class citizens, and treated as if everyone of us was an IRA bomber.
But, when we got to the States they never bothered checking your bags they barely loked at your passport and you just got waved through security if you set the alarm off. Land of the free and all that. :roll:
No ****ing wonder someone spotted a gap in their security. And lets be honest here, the US aren't exactly flavour of the month in most of the world. Even before the **** ups in Iraq and Afghanistan, they were infamous for meddling in other countries affairs and throwing their sizeable weight around (we in Britain were guilty of this too, but on a much smaller scale).
Whoever spotted this gap in their security wouldn't have needed to be Einstein. It's not difficult to punch someone on the they aren't looking/their back is turned!