The Associated Press reports (via Breitbart.com) that lawyers for the nation of Mexico have submitted a brief in support of a lawsuit asking to declare the newest immigration law in Arizona unconstitutional.
I believe it is precisely because they know that the law will not lead to racial profiling that they don't like it. They know that most of the people who will be turned over to ICE by local law enforcement, and potentially deported (whether to Mexico or some other nation), are criminals. Because the law stipulates that only another legal incident will result in legal status verification, most of the people subject to that verification will have been involved in a crime of some sort. That's the whole reason they don't want this law to stand.
That's my story and I'm stickin' to it!™