Remember that frequent flyer pilot they began a month or so ago in a few airports around the nation? (Volunteers are allowing biometric information to be captured in order to bypass extensive security checks every visit.)
A paper in Minnesota published an opinion article as to the status of the program in their airport thus far. Evidently, it's doing well there. It could be that the program is as good as hoped, or that people in Minnesota are just good at obliging things. We'll sure see as the program progresses.
Security Program has early success.