I think one of our weaknesses, especially in our intelligence gathering services, is not having enough loyal people to help us translate. If I remember correctly, there was talk about this in the news, just after the attacks. They needed to recruit more people who spoke the languages of our enemies. As long as they pass a very thorough back ground check, I'm happy to have them.
There are good "non-citizens" who are serving our country and helping to keep us safe. We need their language skills. Hardly any American speaks several languages fluently.