SPOT (which stands for Screening of Passengers by Observation Techniques) is a program launched in the United States by the Transportation Security Administration to identify potential terrorists among people at an airport by a set of 94 objective criteria, all of which are signs for either stress, fear, or deception. Passengers meeting enough of the criteria are, under the program, referred for a patdown and additional screening. The criteria were initially secret, but in March 2015, The Intercept published them after obtaining the information from an anonymous source.