How did we not see this one coming?

How did we not see this one coming? It was there right in front of our goddamn faces for almost 40 years, back when Woody Allen was intentionally funny: The solution to the problems posed by the underwear bomber.
More to the point, we are a nation of idjits:

Nearly two-thirds of Americans support the new full-body security-screening machines at the country's airports, as most say they put higher priority on combating terrorism than protecting personal privacy, according to a new Washington Post-ABC News poll.
But half of all those polled say enhanced pat-down searches go too far.

Which means, I guess, that half of Americans feel that the pat-downs don't go far enough.