Racial profiling is bad security. Forget the ethical implications for a moment, and simply concentrate on how exactly racial profiling improves our security...or not. And don't take my word for it, I'm just some guy on the internet. But really think about it, this isn't some great mystery you need to trust your leaders on, it's all pretty basic logic.
The argument goes something like this: applying the same security measures to two people, one Middle Eastern and the other not, is stupid because the Middle Eastern person is more likely to be a threat than the other person. So the answer is to focus more on Middle Eastern people, because that way is more likely to nab threats.
There are two pretty obvious problems with this. Number one, and the more obvious one, is that while INCREASING security applied to those profiled, you are decreasing it for those the profile doesn't apply to. If "random" searches at the subway occur more often for people who match the profile, they occur less often for those that don't match the profile. As the genius assemblyman pointed out "they all look like this" producing pictures of Muslims on the watch list with facial hair and turbans. Anyone who doesn't see where I'm going with this, re-read that again until you do. A terrorist with half a brain will simply apply some quick and dirty measures to NOT fit the profile. Shave his facial hair, don't wear a turban, and dye his hair blonde. Maybe apply some makeup if he has darker skin so he looks less Middle Eastern. And not only is this very easy to do (and obvious to anyone who thinks about it for 2 seconds), it has made security far worse than it would have been previously, because with those simply steps it is far less likely that he will be searched than before. And this is totally ignoring the threat from terrorists who don't fit the assemblyman's stereotype.
Secondly, and perhaps less obviously, it weakens the benefits of having cops there in the first place by making them follow some rulebook instead of simpy going with their gut instincts and doing what we pay them to do. While they are patting down Abdul Abdul, some American looking guy could be acting all shifty, wearing a parka in July, or any of the dozens of other things that cops could be watching for. The argument that they can still do those things is wrong, because cops have limited time and resources, and making them focus on something of dubious security value at the expense of things that might actually help is dumb.
And I know I said I was ignoring the ethical aspects for a moment, because frankly I think this is a dumb idea even without those considerations, but I think some of you people are forgetting one important thing. Many of those people being singled out are Americans just like you, with the same rights and freedoms as everyone else. Is it ok to apply a different standard to them simply because people who share their racial or religious background did something wrong? It's not about being PC or not, it's about recognizing that we are all Americans FIRST, and equality is a big part of being an American. Personally I think any idea to the contrary is about as un-American as you can get.