Words on Paper about Papers Do Not Alone Make Law

Here's a letter sent yesterday to the Washington Post:

George Will rightly charges left-liberal opponents of Arizona's immigration statute of cynically exploiting it to discredit the courageous men and women who object to Washington's current agenda of politicizing all aspects of Americans' lives ("Arizona law's foes are using the real immigration scare tactics," May 2).

Unusually for Mr. Will, though, his defense of Arizona's statute rests on weak reeds.  For example, excusing Arizona's...