I, too have an older passport that I use exclusively for the ID check. Recently I've had a few ID checkers want to thumb through the passport.

My response in those cases is to tell them that the identification part of the passport is their only concern and the presence of any stamps showing where I've been is none of their business. A couple of times I've had to ask that supervisors be called.

What is it with this agency? Why is is so hard to train people to perform their duties without intruding into passengers' private lives?