From this:

With scant hours to go before a controversial Arizona immigration law goes into effect, a federal judge granted a preliminary injunction Wednesday against the implementation of parts of the law.

U.S. District Judge Susan R. Bolton ruled that the federal government "is likely to succeed" in its challenge of the legality of one of the most controversial sections of the Arizona law.

That provision required police to "make a reasonable attempt to determine the immigration status of a person stopped, detained or arrested" if the officer has a reasonable suspicion that the person is in the United States illegally.

From this:

The judge also put on hold parts of the law that required immigrants to carry their papers at all times, and made it illegal for undocumented workers to solicit employment in public places. In addition, the judge blocked officers from making warrantless arrests of suspected illegal immigrants.

"Requiring Arizona law enforcement officials and agencies to determine the immigration status of every person who is arrested burdens lawfully-present aliens because their liberty will be restricted while their status is checked," U.S. District Judge Susan Bolton ruled.

If you oppose illegal immigration, you might be tempted to simply seethe, or rant and rave, or attend marches, or the like. That would certainly be good for those demagogues who'll be along shortly to complain about this ruling.

Meanwhile, I'm going to ask you to do things that are smart and highly effective and that can be used to actually resolve this problem. Please go right now see the simple things you can do to stop amnesty and reduce illegal immigration. Take a few minutes and read that page and find something you can do; the time requirements for some of those are minimal. Even if you can't do anything on that list, at the very least send the list to your friends and encourage them to get involved.

If you engage in useless activities - waving loopy signs, leaving the 1000th highly similar comment in online echo chambers, or all the rest - you'll be helping the bad guys win.

If you don't want to help the bad guys win, click the link above and either do one of those or at the least encourage your friends to get involved.

UPDATE: Jan Brewer has released this statement:

"This fight is far from over. In fact, it is just the beginning, and at the end of what is certain to be a long legal struggle, Arizona will prevail in its right to protect our citizens. I am deeply grateful for the overwhelmingly support we have received from across our nation in our efforts to defend against the failures of the federal government... I have consulted with my legal counsel about our next steps. We will take a close look at every single element Judge Bolton removed from the law, and we will soon file an expedited appeal at the United States Court of Appeals for the 9th Circuit... ...I will battle all the way to the Supreme Court, if necessary, for the right to protect the citizens of Arizona. Meanwhile, I also know we still have work to do in confronting the fear-mongers, those dealing in hate and lies and economic boycotts that seek to do Arizona harm..."

UPDATE 2: Arizona wanted an expedited hearing, but the 9th Circuit U.S. Court of Appeals denied their request and the hearing is scheduled for the first week in November. Also, Brewer has indicated that she might be open to changing the law in some ways.