of us that don t know much about explosives. anderson, it s very easy, this technology is old but reliable. it worked on several attacks in the 70s, the bombs went off. you know, the dead nay tors can be smuggled on. that s always the hardest part with the underwear bomber from amsterdam. they were lucky that didn t go off. the detonator was absorbed as sweat and that s why it didn t detona detonate. it s the technology, i don t think we ve really been able to defeat. i mean, you me, it s not just smuggling an employee of the airport. anybody can walk near an airplane can put something on a wing and the rest of it. but more than that are x-ray machines cannot detect a very sophisticated device with or without a barometric switch.