Well it can show Jan Brewer and the rest of the RRR (Really Racist Republicans) that they made a huge mistake by messing with the Latino community. The law can then hopefully get overturned.
This is a good thing. Especially for our friends who live in Arizona (although not just yet). And besides, as long as this law takes place, you can forget about ANY plans that require you to pass through Arizona.
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Do not lose faith and do not lose heart. Never give up.