The First Rule of TSA: Don't Complain About TSA

Those who complain about security procedures at airports may draw additional scrutiny from Transportation Security Administration screeners. CNN has obtained a list of roughly 70 “behavioral indicators” that TSA behavior detection officers use to identify potentially “high risk” passengers at the nation’s airports. Many of the indicators are behaviors and appearances that may be indicative of stress, fear or deception.

None of them refer to or suggest race, religion or ethnicity. But one addresses passengers’ attitudes towards security and how they express those attitudes. It reads: “Very arrogant and expresses contempt against airport passenger procedures.”

So be careful of showing frustration the next time you're at an airport or the TSA may decide you need a closer look.