One of the Transportation Security Administrations vaunted 20 layers of security has been looking a little porous lately, and the resulting dust-up is calling into question the effectiveness and the cost-effectiveness of post-Sept. 11 airport screening.
Im talking, of course, about the TSAs controversial full-body scanners, also known as advanced imaging technology.
Last month, depending on who you believe, a 27-year-old engineer named Jonathan Corbett either exposed the scanners as seriously defective or pointed out a minor flaw that insiders had known about for a while. Either way, his actions have raised serious concerns among air travelers, not the least of which is whether were less safe now that the bad guys know how to squeak past our shiny new scanners if indeed they do.
A video clip posted online March 5 purportedly shows how Corbett outsmarted the scanners: He sewed a pocket to the side of a shirt, placed a metal carrying case that he says would easily alarm any of the old metal detectors inside it and walked through the two types of full-body scanners now in use, without incident. Corbetts theory was that the case, hanging to the side of his body rather than in front of or behind it, would disappear into the black background of the scanned image, thus escaping detection. Even though claims of the scanners fallibility werent new, the video promptly went viral, capturing more than a million views within a few days.
Corbett says that the idea of discrediting the TSA scanners came to him after he read a report saying that the New York City Police Department is deploying similar technology to detect contraband from afar. He wondered whether he could invent something that would render the NYPD scanner useless.
It didnt take long to realize that I could apply that same entrepreneurship to the TSAs nude body scanners and invent a holster that would make its contents invisible to the TSA, he says.
The TSA quickly posted a response on its blog calling Corbetts actions a crude attempt to allegedly show how to circumvent TSA screening procedures. But the agency didnt dispute that Corbett had actually done that, leading many observers to conclude that hed figured out how to thwart the $170,000 machines.
Thats not a fair interpretation, TSA spokesman Greg Soule says. That said, for obvious security reasons, TSA cant discuss our technologys detection capabilities in detail.
Heres what the agency will say: The scanners are safe and effective, part of a layered, risk-based approach to security through screening technologies and applying intelligence to our security measures in real time.
Adds Soule, Our nations aviation system is safer now with the deployment of 600 imaging technology units at 140 airports.
The passengers with whom I spoke told me they didnt think that the video has affected the safety of air travel. They also agree that the video gives lawmakers, who are under pressure to cut government spending, an opportunity to review the advanced imaging technology program. This particular layer of security will cost taxpayers $2.3 billion in extra staffing over the machines seven-year life spans, according to a Government Accountability Office report. The scanners will set them back an additional $289 million or so.
Corbett, who writes a blog called TSA Out of Our Pants!, says the reaction to his video brings him closer to his goal of revamping the TSAs screening procedures. This has been his mission since 2010, when he filed a lawsuit against the TSA, claiming that the scanners are unconstitutional.
I want to see the scanners and the pat-downs disappear from airports and to see effective, noninvasive tools replace them, he says. It remains to be seen what the TSA will do about the scanners, but I do think this was, at the least, an important step on the path to their removal.
Yes, but did this video just make air travel a little more dangerous?
That might be the wrong question because it implies that full-body scanners have made us safer. But theres no conclusive proof that advanced imaging technology is effective or, for that matter, safe.
Maybe Corbetts video really established only one thing: that the TSAs unproven screening technology remains exactly that unproven.
Christopher Elliott is the ombudsman for National Geographic Traveler magazine. Email him at firstname.lastname@example.org, or troubleshoot your trip through his website, www.elliott.org. Distributed by Tribune Media Services.