AdvertisementTSA's 'Quiet Skies' Program Tracks, Observes Travelers In The AirJuly 30, 2018Camila DomonoskefacebookEmailA passenger looks over planes sitting on the tarmac at LaGuardia Airport in New York City on Nov. 22. A previously undisclosed TSA program flags passengers for observation, and undercover air marshals observe their behavior — including whether they make calls or send texts as they travel, The Boston Globe reports. (Getty Images)