Ok, to take your points one at a time:
AA in baggy pants, hoodie, and jeans pulled down to their thighs: if it walks like a duck talks like a duck and goes quack, it's a mother fuckin duck lol. Now if one doesn't want to be treated like a gang banger, then maybe they shouldn't dress like one?
It's called how one presents themselves....which is the first thing the vast majority of people base their impression on.....Now an AA dressed in an armani suit could be the biggest drug runner on the planet yet he'd be approached quite differently.
How to differentiate between the good and bad? You look for things that might be clues, in this case, discussions about the structure of the plane. So am I to understand that we (everyone including all races) should simply ignore anything that MIGHT be a clue?
As for the WTC being built to withstand the impact of a 707, I heard on one of the specials that it was designed for a light aircraft, not an airliner. The architect specifically said in an interview that it wasn't designed to withstand the impact of an airliner.......and with new ideas come new practices, when a group of one race commits a crime, the authorities and civilians learn and keep an eye out for clues. Now they may be fishing with a 700 mile drift net instead of a net specifically designed to catch that one fish, but that's the fallout of taking precautions.
Now what would you have anyone do? Ignore anything that might be a sign or a clue and only react to someone who is specifically stating one of the 10 words you can't say on an airplane?
1) middle eastern people(s) commit terrorist acts
2) Middle eastern families have committed terrorist acts
3) yes other races have committed terrorist acts which is why EVERYONE is subject to search, seizure and removal from an aircraft
4) Some words spoken by some people have no meaning, some words spoken by other people have meaning. That is an undeniable fact.
It is unfortunate and terrible that many have to pay for the deeds of a few but as for your last statement?
YES that is the case. Just as I (being a white person) can't use the N word, middle eastern people can't discuss plane safety. Sucks, I know, but what are you going to do?