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In a further development which added to concern over the ease with which the explosive material used in the devices – Pentaerythritol tetranitrate, or PETN – can be passed through all kinds of airport security, Qatar Airways said the bomb found in Dubai had travelled on two separate passenger aircraft without being picked up. "There is no way of picking out PETN," said the British counter-terrorism official. "It is a continued vulnerability."

Don't like the way airport screeners are doing their job? You might not want to complain too much while standing in line.

Arrogant complaining about airport security is one indicator Transportation Security Administration officers consider when looking for possible criminals and terrorists. And, when combined with other behavioral indicators, it could result in a traveler facing additional scrutiny.

A teenage girl's sense of style got her in trouble at the airport.

Vanessa Gibbs, 17, claims the Transportation Security Administration stopped her at the security gate because of the design of a gun on her handbag.

Gibbs said she had no problem going through security at Jacksonville International Airport, but rather, when she headed home from Virginia

If you don't want to pass through an airport scanner that allows security agents to see an image of your naked body or to undergo the alternative, a thorough manual search, you may have to find another way to travel this holiday season.

The Transportation Security Administration (TSA) is warning that any would-be commercial airline passenger who enters an airport checkpoint and then refuses to undergo the method of inspection designated by TSA will not be allowed to fly and also will not be permitted to simply leave the airport.

Tyner was simultaneously thrown out of San Diego International Airport on Saturday morning for refusing to submit to a security check and threatened with a lawsuit and a $10,000 fine if he left.

Cabinet secretaries, top congressional leaders and an exclusive group of senior U.S. officials are exempt from toughened new airport screening procedures when they fly commercially with government-approved federal security details.

Drivers approaching the Manchester-Boston Regional Airport will be subject to random vehicle inspection and search. The random inspections are reportedly designed to be brief and "minimally intrusive" so as not to disrupt passenger travel schedules. The stops will be conducted in cooperation with airport security, police and the U.S. Transportation Security Administration. The inspection area is along the airport entrance road, located after an advisory sign that alerts motorists, "All vehicles are subject to search."

"The transfer of 41 police officers and 12 firefighters might save the airport an estimated $10 million a year, a savings essential to preventing the loss of more flights -- and the passenger revenue they bring -- from the financially strapped airport, officials said."

A photo posted on Twitter of a baby receiving a pat-down at Kansas City International Airport is the latest in a number of recent highly publicized incidents of airport security screenings involving young children.