Jim Harper, a researcher who has looked at the evolution of federalism in the U.S., analyzes the debate over a national ID system. Do you agree with his assessment of the pros and cons of the law regarding enhanced security vs. diminished privacy? Explain. It appears that states have successfully resisted encroachment of the national government in this case, as deadlines have been pushed back and criteria modified. Why, in this case, does it appear the states have the leverage to resist? Explain. What general lessons and principles can this case of federalism tell us about the tug-of-war as it works in other issue areas?