What is the connection?
Take a look at what the Immaculator said, keep people on the no-fly list from buying guns. What is the connection? First, smuggling a gun on an airliner is highly unlikely, so there is no connection here. Second, does anyone really believe that a terrorist would go to Wal-mart to buy a gun for his terrorist activities? Or, does he think that illegal arms importers call the FBI for background checks?
This is beyond stupid. And, guess what? For the foreseeable future, we are going to see this disjointed thinking used to justify "common sense gun laws." Brrrrrr!