Is the national security agency predjudice?

Hi again. I am here to ramble about how the NSA today is predjudice. Now I am not one (yet i am) to say that the government is a bit (if not a lot) screwed up on their priorites when it comes to national security. It has come to my attention that airports have been doing unfair "random security checks" on those they feel might be a terrorist based off of profiling. Many of these people the check are of arab decent(not sure on spelling, facial features, or based off their name. My friend has the last name of Grofebert and because of his last name everytime he goes through airport security they give him "random searches". Now he is a white male, who was born and raised in the USA and has no history of crimes. His only problem is his crooked neck. Now based off what i told you do you believe he is a terrorists? Another example. I was on my way to arizona for the first time in m life and we were in the airport just at the last security point. The people in line were me a Half black Half White male, my dad African american, an african muslim (not sure but he was wearing the garbs of one), an arab man, and a family of 5 caucasions. Now with just us in that line i saw the first random security check happen to the arab man. They took him to another room and he came back 5 minutes later. the next one was actually me. Now the guy looked at my ID, looked at me, then back at my id....he told me to step into the room for a random security check. While we were in the room he was talking to me how it was illegal for people to carry fake ID's to get on planes and blah blah blah.....The only ID i had on me at the time was my school ID. Apperently he thought it was a fake, and "assumed" i was trying to do something illegal. Well when we finished me and my dad had to run to make our flight which we almost missed. Explain to me how there was 2 "random checks" on two people in the same line only 3 people apart from each other. Please leave comments.