"Look a bit silly when the bar code reader at the gate spits out his fake boarding pass, wouldn't he? Or when the headcount on board is incorrect?"...and
"Had he made it onto the aircraft then it would have been a problem."
That was the whole point, guys - that he didn't WANT to get on to the aircraft.
He wanted to prove that he could get through security and THEN stash an explosive device into another passenger's carry on baggage that had cleared security.
The guy has made a valid point, imo.
While the security people are obsessed with looking for 2" nail files, this guy slips through (presumably with non-detectable explosives) concealed on his body - and with a (fake) boarding pass in the name of Bin Laden, the world's most Wanted man.
As has been stated on this forum before, airposrt security is nothing more than a pacifier for the non-terrorist travelling public - an inconvenient, inefficient, expensive placebo.