alt Hacker NewsNot in the context of someone smuggling a weapon through a security checkpoint. At least not unless they're certain that it's small enough not to trigger the detector.
That said I will note that it is generally illegal to possess such nonferrous weapons regardless of circumstance.
And it is, again, completely irrelevant.
How does a plastic pistol open the cockpit door? It is proof to small calibers. You might shoot someone in the plane and then you will be subdued and ghaddafied with a SkyMall magazine. Not the most effective form of terrorism.
Countries that didn't create the TSA also had a reduction in terrorism.