Ben Brandt, once an aviation security advisor to Delta, has published a scathing indictment of the TSA and its methods, arguing that they've spent $56B on "security" that won't stop terrorists, while ignoring actual threats.
But the last several years' worth of plots on the friendly skies indicate the terrorists have switched their game plans. In January, a suicide bomber didn't try to board a plane at Moscow's Domodedovo airport. He detonated before going through security, in the crowded entranceway, killing 35 people and wounding over 150 more. Last fall, al-Qaida's Yemen branch skipped the boarding call and shipped bombs packed in printer cartridges back to the States.
Less conspicuously, terrorists have started to infiltrate the airlines and airports themselves. Rajib Karim, for instance, worked as an IT specialist for British Airways. But inspired by al-Qaida YouTube preacher Anwar al-Awlaki, Karim offered to help al-Qaida sneak bombs aboard planes at London's Heathrow airport, and claimed to have support from sympathetic airport workers. The airlines and airports barely conduct employee background checks, Brandt claims — and of course, none of those employees need to go through a "porno scanner," get a pat-down or have their luggage rifled through.