So? The situation is what it is.
If something happened tomorrow and the perpetrator had just entered this country from Iran, you'd be the first here to criticize things. I know how you are H4.
So what is wrong with being extra vigilant? And don't give me some "Japanese interment camp" bs. Which I know is exactly what you would have written. There's no comparison. They didn't go to Detroit and start rounding up Iranians and arresting them. So wtf? Its a border crossing. Sorry for the inconvenience, we don't know you. Get over it or go home because you're not coming in our house until we know what the f you're about. Have a seat.
And before you go off on "citizenship"... hey, customs has always given extra attention to people acting suspicious or aggressive, regardless of the fact they were U.S. citizens.
so you're cool with sacrificing the rights of citizens of different backgrounds, no need to make a story about it.