Turns out DHS may not cooperate with the Arizona law. Hosenball reports:
Amid the outrage about Arizona’s strict new immigration law, a pivotal question remains: how will the Obama administration respond? Only the feds can deport a person, which means that Arizona will need Department of Homeland Security cooperation to carry out local law. But don’t bet on the state getting it. A DHS spokesperson says the issue is under “review.” But two administration officials, who asked for anonymity to discuss internal DHS matters, tell NEWSWEEK the department has already signaled to Arizona police that it will most likely detain and deport only violent criminals. Everyone else will get a written notice requesting that they appear for a future hearing—warnings that some immigration officers call “run letters” because recipients so rarely show up.