Arizona immigration crackdown

In April 2010, the state of Arizona in the United States, which shares a border with Mexico (southern border for Arizona, northern border with Mexico) passsed a law titled SB 1070 with the goal of cracking down on illegal immigration by increasing the involvement of local law enforcement in identifying and reporting illegal immigrants. Various aspects of the law were challenged in a case that went up to the US Supreme Court in 2012. Arguments for the case were heard on April 25, 2012, and the decision was made on June 25, 2012, with some aspects of the law being struck down as unconstitutional.

Resources

Wikipedia page
Resource page on the Immigration Policy Center website.
Supreme Court case US v Arizona (full PDF)
Migrant labor in the US agricultural sector has links to news articles about the impact of the immigration crackdown on the agricultural sector in Arizona and other states in the Southern United States.

Response to Arizona law by people supportive of open borders

The Economic Case against Arizona’s Immigration Laws, a policy analysis by Alex Nowrasteh for the Cato Institute, published September 25, 2012.
Missing the Big Picture by Steven Landsburg, April 30, 2010, for his blog The Big Questions. Landsburg claims that Kris Kobach‘s claimed rebuttal of major objections to the Arizona immigration law does not in fact address the major objections.
An Open Letter to George Will by Donald Boudreaux, May 3, 2010, for the Cafe Hayek blog.
Words on Paper about Papers Do Not Alone Make Law by Donald Boudreaux, May 3, 2010, for the Cafe Hayek blog.
Arizona Immigration: Battle of the Collectivists and Arizona Immigration Continued by David Henderson, May 2010, for EconLog.
Economic Judgment on Arizona’s Immigration Law by Alex Nowrasteh, April 25, 2012, originally published in the Huffington Post.
Arizona-Style Immigration Laws Hurt the Economy by Alex Nowrasteh, October 12, 2012, originally published in Forbes.