The thwarted Christmas Day bombing plot has certainly raised security levels in airports over the holidays. Individual passengers are being frisked before boarding, presumably to make sure they don't have any hidden compartments in their unmentionables (but inspectables). Carryons are being dramatically restricted to reduce screening times, as all such items have been hand inspected. Not at all surprisingly, this has brought body scanning technology to the fore.
In October of this year, the Federal Privacy Commissioner gave her conditional approval to the use of the technology. The conditions are that the images are not retained and the scanners are used only as a secondary screening tool. (See: A necessary image - The Globe and Mail.) However, all passengers to the US are now subject to secondary screening. The Globe article says that technology exists to blur faces and genitals, but I would think that genital blurring may might have obscured a cleverly hidden crotch bomb.
Also according to the Globe (Nigeria, Netherlands to introduce full-body imaging; Canada undecided - The Globe and Mail), both countries that were connected to the pantsbomber, Nigeria and the Netherlands, are introducing body scanning for all flights to the United States. So are UK airports (BAA to introduce full-body scanners at UK's Heathrow).
I travel a lot. Personally, I'd rather be virtually stripped in five seconds than physical patted down by a stranger over two or three minutes. But I'm not so shy. I would also think that the same technology that is currently used to detect explosives residue should be rolled out on a wider scale as well.
For a good overview of the technology and the debate, check out: Full-Body Scanners at Airports: The Good, the Bad, and the Ugly Technomix Fast Company.Also, CBS (via YouTube) does a pretty good job of covering the debate: