Around here, we frequently ask the question: Compared to what?
Usually, we use this question to address the fact that many people expect biometric identification systems to be perfect when they don't hold anything else in the security realm to that standard.
Judging by the recent news surrounding the TSA's enhanced interrogation techniques, it makes sense to apply the same question to the degree to which biometrics invade privacy.
The Dept. of Homeland Security and the Transportation Safety Admin. have probably done more in the last two weeks to increase public acceptance of biometrics than anything we've seen before. A search of today's Bing News site using the terms "biometric airport" is extremely revealing.