1.  What is the main idea of Dr. Sowell's commentary?

2.  What is the 10th Amendment?

3.  In para. 12-13, Dr. Sowell states: "Since virtually everything affects virtually everything else, however remotely, 'interstate commerce' can justify virtually any expansion of government power, by this kind of [argument].  The principle that the legal authority to regulate X implies the authority to regulate anything that can affect X is a huge and dangerous leap of logic, in a world where all sorts of things have some effect on all sorts of other things."  Do you agree with Dr. Sowell's assertion?  Explain your answer.