"Allahu Akbar"

If there's one aspect of all the terrorism going on in the world we've become accustomed to certain words or phrases not before understood. By now you may have heard about Rageit Almurisi. He had a passport from Yemen and was on an airplane from Chicago headed to San Francisco. For whatever reason, ten minutes from the "City by the Bay" airport he walked down the aisle and started pounding on the cockpit door yelling "Allahu Akbar". Or, "God is Great". According to the article here there was an Arabic translator on the plane telling passengers what he was saying. By now, that phrase is more than understandable. It's the equivalent of F-U. I think that's a universal phrase. At least it was for me when I got into a tiff in '69 with that guy in Marseilles, France.
So, in today's climate, when a guy starts screaming "A-A" is he certifiable or do we
immediately leave our seats and beat the ever lovin' s**t out of him? I thought so.