When the Transportation Security Administration dispatched undercover investigators last spring to test the effectiveness of airport checkpoints, the results were deplorable. Agents posing as passengers were able to smuggle weapons and mock explosives through 67 out of 70 TSA checkpoints — a failure rate of 95 percent....

In short, yet another fiasco. And the government’s response? Yet another directive from Homeland Security that “an immediate plan of action be created to correct deficiencies uncovered by our testing.”

Fourteen years after the creation of the TSA, there is still no indication that the agency has ever caught a terrorist, or foiled a 9/11-type plot in the offing. Conversely, there are reams of reports documenting the inability of TSA screeners to spot hidden guns, knives, bomb components, and other dangerous contraband as they pass through airport checkpoints. It’s doubtful that anyone is still capable of being surprised by a fresh confirmation of the TSA’s incompetence — even if members of Congress do sometimes feign alarm for the sake of the folks back home.

Let’s face it: The Transportation Security Administration, which annually costs taxpayers more than $7 billion, should never have been created. The responsibility for airport security should never have been federalized, let alone entrusted to a bloated, inflexible workforce. Former TSA administrator Kip Hawley calls it “a national embarrassment that our airport security system remains so hopelessly bureaucratic” and warns that “the relationship between the public and the TSA has become too poisonous to be sustained.” More tests and more failures won’t fix that. Scrapping the TSA would.