TSA's biometric tests are getting attention, but it seems like the questions being asked are wrong. There has been biometric testing of all airline travelers since 9/11. The question is where is biometric data collected and retained. It seems that public cameras are becoming ubiquitous and the storage duration varies widely. Given this, what is there really to control now?

A senator had trouble saying no to TSA's voluntary facial recogntion - The Washington Post 
 

..tom