“I think we should catch ’em, we should document ’em, make sure we know where they are and where they are going. I actually support micro-chipping them. I can micro-chip my dog so I can find it. Why can’t I micro-chip an illegal?" Pat Bertroche, Republican congressional candidate from Iowa.

We want to hear what you think about this article. Submit a letter to the editor or write to letters@theatlantic.com.