Earlier quoted context omitted.
Are you kidding? Airport security breaches are so commonplace that they don't always merit news coverage anymore. Here, another TSA pen-test failure. http://www.reuters.com/article/2013/03/08/us-usa-security-ai... These are just the ones we hear about, and don't include incidences of undetected contraband carried by passengers, unwittingly and intentionally.
So the argument is that since you already can bring a real bomb into the airport, creating one-shot un-concealable weapon that is useless in any practical scenario is a huge security threat requiring the government to ignore both 1st and 2nd amendment because of it? Could you expand this argument a little more, I don't see how exactly it plays out.
There have been plenty of "practical scenarios" where access to very minimal handguns has been used to gain access to more. E.g. handguns were quite significant in the Warsaw Ghetto Uprising.
And its certainly concealable; a bit thick for my tastes, but otherwise almost every time I walk out the door I'm carrying concealed a 4" barrel standard length magazine M1911, which is not a whole lot different in the other dimensions, and plenty of people are able to conceal revolvers with thick cylinders or semi-auto handguns with double stack magazines.
Have you ever personally carried concealed?