Technically, Quiet Skies isn't new, having been implemented by the TSA in 2010. But until March, it involved screening and observation of targeted subjects only within airports.

TSA 'quiet skies' program tracks unsuspecting travelers. Tamala Edwards reports during Action News Mornings on July 30, 2018.

The Boston Globe first reported on Sunday that the TSA implemented the “Quiet Skies” program years ago to help eliminate threats posed by “unknown or partially known terrorists.” ...

TSA chief David Pekoske says the "Quiet Skies" program has been running for years but only recently added air marshals to the operation.

TSA spokesperson James O. Gregory told The Washington Post a bit more about why Quiet Skies was created in the first place: as “an additional line of defense to aviation security.” ...

"The TSA must start targeting passengers based on fully developed intelligence as required by the Strengthening Aviation Security Act of 2018, and stop assigning missions based on a single data point, ...

Sen. Ed Markey (D-Mass.) sent a letter to the head of the Transportation Security Administration (TSA) on Monday following a Boston Globe report on the “Quiet Skies” program, under which ...

But now, when the TSA is trying to do just that, critics are in an uproar over its "Quiet Skies" program, in which air marshals closely monitor passengers tagged as potential threats.

In Quiet Skies, these same surveillance mission reports are completed the same way, but kept within TSA, agency documents show, and shared with outside agencies only if air marshals observe ...

Currently the Quiet Skies program does not meet the criteria we find acceptable." TSA tells ABC News they follow individuals who may have suspicious erratic travel patterns and that this is not a ...

During an on-stage discussion before thousands of travel managers and in an interview, TSA Administrator David Pekoske said the program known as Quiet Skies helps protect airline travelers from ...

The program is called Quiet Skies and specifically targets U.S. citizens not in the terrorist screening data base or suspected of wrongdoing, according to TSA.