Oh well. There'll be no Grand Canyon for this legal immigrant as long as Arizona stays a police state.

As Linda Greenhouse says in today's New York Times the new law is the same as the internal passports systems which were so despised in apartheid South Africa and the former Soviet Union.

How are the police in Arizona going to decide who they think should be holding these internal passports?

What grounds can they really have to decide that "the person is an alien who is unlawfully present in the United States."

How can they tell?

The Irish Lobby for Immigration Reform reckons there are 50,000 illegal Irish immigrants in the U.S. and there are certainly substantial numbers from other countries in Europe.

How will the Arizona police know who's legal and who's not?

Will they stop me, a white English-speaking woman, or will they stop the bilingual Hispanic woman beside me?

I think we all know the answer to that one.

As protestor Jose Acosta told CNN on Sunday: "People are going to be stopped just because of the color of [their] skin. And it ain't right...Are they going to be looking for Europeans as well, or is it just the brown people?"

And if I am stopped and they figure I have a funny accent, what then?

Am I supposed to carry my U.S. passport round with me the whole time?

This law makes a moving target of all immigrants in the U.S., legal or no. I think I'll spend my tourism dollars elsewhere.