So if you think that TSA agents (a) don't take their jobs seriously, (b) wield random screening for their own amusement, (c) don't adequately use the technology they already have and (d) aren't supervised by the people hired to make sure that (a), (b), and (c) don't happenwell, this would be the kind of incident you'd point to. The specific agent behind the prank has been fired, but that doesn't do anything about the culture that make him think his little stunt was the height of hilarity.
The natural question is "what could he possibly have been thinking?" And the answer is "he thought it would be funny, because he works around people who made him think it would be funny." This trick only works if you go to coworkers beforehand and say watch this.
The TSA is undoubtedly filled with lots of good and hardworking people. But it's now undeniable that many airports have an institutional culture that lacks seriousness. Instead of targeting that culture, though, they're investing billions in security theater that papers over the problems. Throwing billions at flashy technologies can't be anything but a distraction from underlying security gaps. That these new technologies increase the potential for arbitrary and invasive pranks is just the icing on this less than yummy cake.
[Photo: Crashworks / Flickr]