Labor unions oppose the Arizona immigration law because some of them want to legalize then recruit illegals into their ranks, Sen. John McCain (R-Ariz.) said Wednesday. McCain specifically mentioned the Service Employees International Union (SEIU) as one union that wants to engage in the practice since it represents many people who work in the tourism industry, which he said employs many illegal immigrants. "They want to have them declared legal to recruit them into unions,” he said in an appearance on the conservative Michael Medved radio show.