The TSA is the goverment's ultimate dog and pony show. In reality it does very, very little to stop terriorists. Most of their job should be done with technology that offers ease of use and very unobtrusive in nature. Unfortunately, there is no politican alive that would suggest that we do away with nearly strip searching granny at the security point or even allow us to travel again with enough tioletries to sustain us for more than one day (anyone who can survive on what you can place in a baggy for several days would to me have hygiene that is somewhat suspect).
In other words, the TSA, or some other version thereof, will not be going away in my lifetime.