When any crime happens, police often ask everybody in the immediate area for identification. If a speeding car is pulled over and it appears the occupants of said auto are intoxicated, then all are asked for identification. Arrests are made accordingly if some of the riders are under age. isn't that profiling? What is the difference?
I can only hope more states join Arizona. maybe then the Feds will understand we want controlled immigration -- not criminals.
edit. Here is the text of the law. Note the law only acts in enforcing existing Federal Law.
Section 1. Intent
The legislature finds that there is a compelling interest in the cooperative enforcement of federal immigration laws throughout all of Arizona.