"Opponents of the Justice Department's lawsuit challenging the enforcement of Arizona's controversial illegal-immigration law have hit upon a strategy to highlight what they contend is a gaping inconsistency in the Justice Department's policy priorities. Why should federal attorneys be targeting the Arizona law as an alleged obstacle to coherent and centralized enforcement of federal immigration statutes, they argue, while Justice officials also have done nothing to challenge the legal status of so-called sanctuary cities, which effectively block enforcement of the same federal law?"
Sanctuary cities become new target in immigration debate - Yahoo! News