A generous ladling of slop with a dash of principle

The SCOTUS ruled on Arizona's immigration law today, upholding the key feature - allowing AZ law-enforcement personnel to check immigration status of people they stop on probable cause for other violations.  The rest?  Struck down.  Anthony Kennedy's opinion was full of fluff that had nothing to do with law, such as "human concerns."  Save that stuff for the op-ed page, Justice K.