Most of us would like to know that there is a method to the madness.
The right answer should be that TSA will have physical security measures, but they will be used to target passengers on the basis of risk. Hint to TSA: not everyone going through security is a risk. Differentiating between sweet Susie law-abiding citizen and would-be terrorist starts before either of them would ever enter the airport walls. In fact, previously foiled terrorist attacks have taught us that the best way to stop terrorism is to focus on improving the flow of intelligence between local, state, and federal law enforcement and empowering them to track down terror leads in communities. Additionally, working with our international partners and robust-interagency coordination on visa and intelligence matters is equally vital. There are watchlists that can assist in stopping a terrorist from even getting on the plane, and they don't involve any kind of pat down or body scan.

If intelligence leads TSA screeners to believe that a person requires additional review based on credible intelligence—Americans should expect, if not demand that the government pull them aside. Most of this physical screening has no place, however, in primary inspection lines. Pretending that everyone is a risk is a weak way to do intelligence—the onus is on TSA and DHS as a whole to improve this process.

How about Behavior Recognition Screening?