Being a Middle Eastern myself I don't mind to go through three hours safety check procedures at the port of entry to the US. Some people miss their connecting flights and it is frustrating sometimes but if that can help to prevent tragedies like 9/11, so be it. It is better than after the accident accusing certain race or nationality for that matter. Frankly I don't think being a terrorist has anything to do with race, beliefs, nationality or religion. This is a sickness that has to be prevented by raising safety measures. Also I don't think that terrorists communicate with a certain language. I think nowadays encrypting such materials is as easy as working with a computer. Mistakes in these procedures are inevitable; hopefully they'll get better every day for the sake of humanity.