Another improvement in airplane security

The offense always has the advantage in security.  Defense only has to make one mistake.  TSA is now appearing to go on the offense.  It should result in a big improvement in security:

The Transportation Security Administration plans to train screeners at 40 major airports next year to pick out possible terrorists by engaging travelers in a casual conversation to detect whether a person appears nervous or evasive and needs extra scrutiny.

The new security technique, already in use at some airports, adds a psychological dimension to screening by trying to find high-risk passengers based on how they act at checkpoints or boarding gates.

Passengers who raise suspicions will undergo extra physical screening and could face police questioning.

State police Sgt. Peter DiDomenica called the program “an antidote to racial profiling” that focuses on “objective behavioral characteristics.” He said the program has curbed racial profiling “because we’ve educated people.”

Behavior detection is routine in security-conscious countries such as Israel, where air travelers routinely face aggressive questioning.

U.S. Customs officers have long asked arriving travelers questions, often in random order. If a person gives “stumbling answers,” that could indicate the person has fraudulent travel documents or plans to overstay a visa, Customs and Border Protection spokeswoman Kelly Klundt said.

Now if they would just do the research that I have been suggesting be done.