Remember 9/11/2001. Also, remember the aftermath. And note, as seems always to be the case when the powerful are attacked by the less powerful, that the response to the attack far exceeded in horror the attack itself, was deeply counterproductive to American interests, abroad, even narrowly construed, and destructive to democracy, discourse and the rule of law domestically.
And consider, were a similar attack to occur today, that it'd be more than likely that it'd elicit a response possibly even more obscene than that following 9/11/2002. It breaks my heart to say it, but i think it's true.