Instead, it's likely to ignite a renewed assault on the law.
The court is evaluating the law on only the question of whether Arizona's attempt to fix its border problems is trumped by federal law.
Opponents might then ask the courts to block enforcement of the provision in question on other grounds, such as racial profiling. The court isn't considering the possibility of profiling arising from the law because the Obama administration's lawsuit that sent the case to the court didn't challenge it on those grounds.
The administration focused on whether federal law supersedes the state law.
http://accesswdun.com/article/2012/6/249501