Can Congress Force You to Be Healthy?

NY Times  "When the health care law makes it to the Supreme Court, the justices will ask, with varying degrees of concern, this age-old question: How do we define the limits, because limits there must be, on this federal power?
"Judge Hudson has presented a way for the court to finally answer this question. His opinion is the first prominent judgment to say that Congress can use its power over interstate commerce only to regulate “activity,” as opposed to a lack of action."
Jason Mazzone is a professor at Brooklyn Law School.