The good guys dress just like the bad guys. Time for a dress-code requirement on all VISA applications from countries known to have terrorists. Something like....
There's a war going in our country
with people who look, talk and dress like you.
In order to assist Law Enforcement and to ensure your safety,
you must agree to refrain from wearing such clothing
until official notice from
the Department Of Homeland Security.
I don't think dress has anything to do with it. Mohammed Atta and his band of merry men dressed just like Westerners, down to his clean shaven, smiling face. Moral of the story? Any terrorist worth his salt will attempt to look and behave just as American as everyone else (in fact, Atta had a manual that coached just that). Indeed, they may be as American as you or I. There was the case of Jihadists up in Buffalo who were citizens, but had gone thru terrorist training in Afghanistan.
The only way to solve this problem is to stop them before they get to the border and get serious about deporting them once they're here. I see no sign that this will happen anytime soon. Unfortunately, it will probably take another 9/11 (or worse) before we drop our PC blinders.
What really bothers me is that while one side of the Republican party is trying to protect the homeland, another side (the "Grow at any Cost" Republicans) want to throw open our borders to anyone with a pulse--consequences be damned.