TSA’s Got 94 Signs To ID Terrorists, But They’re Unproven By Science Link: Science! Forget subjective screening, which too often slides into racial and ethnic profiling; instead, evaluate travelers entering an airport using a rigorous set of objective measurements that could spot deception. This was the admirable principle behind the Transportation Security Administration (TSA) program known as Screening of Passengers by Observation Techniques (SPOT), which has been operating at airports around the country since 2007 at a total cost of $900 million—or about $200 million a year.
