The TSA thinks it can catch terrorists by watching people yawn
Next time you’re making your way through airport security, you should probably avoid whistling. Definitely don’t give anyone a “cold, penetrating stare.” And go easy on the yawning. The Intercept has gotten a hold of the TSA’s guide for spotting terrorists, and true to the complaints that’ve been lobbed at the agency for years, the list is incredibly generic; just about anyone boarding a flight could be labeled an evildoer in the eyes of the TSA.
Source:: The Verge