The Tsarnaev father told the New York Times that it's an expression of anti-Muslim prejudice to refuse US citizenship to men who batter women.
Q Did he want to be an American citizen?
A. He wanted to, of course. Why not?
Q. But it didn’t work out, right?
A. Because with his girlfriend, there was a scandal. He hit her lightly. He was locked up for half an hour. There was jealousy there. He paid $250, that was it, he went home. Because of that — in America you can’t touch a woman, they wouldn’t give him citizenship.
A. Because of that they didn’t give him citizenship?
Q. He had gone through the interview, that was it. But they said, he said, they will check the federal authorities, when they check me they will give it. He would have been granted it, he passed the interview. Now we have a new system where they check young people. Because he is a Muslim, I think, and a Chechen, too.