I think that it's rediculous to target out a race of people, for any reason. Back in WWII, the Japanese were interred in POW camps. It didn't matter whether or not they were U.S. citizens, they were interred. Their homes were taken away, sold, demolished, their possessions looted, their jobs lost- these people were left with nothing once they left concentration.
This sort of mentality, that those of Middle Eastern descent are our enemies, is the same sort of rage and paranoia that fuels events like the holocaust.
It is wholly unjust of the United States to single out a set of people because of their race. In fact, it is UNCONSTITUTIONAL, and suggests unfair treatment based on racial attributes.
It's true that many of our nation's freedoms are at jeopardy because of the attack of 9/11. However, the threat is not external, but internal. If we continue to over-react, we are in real danger.
"He who sacrifices freedom for security deserves neither." - Benjamin Franklin