More bits from the transcripts:
JUSTICE SCALIA: Could you define the market — everybody has to buy food sooner or later, so you define the market as food, therefore, everybody is in the market; therefore, you can make people buy broccoli.
GENERAL VERRILLI: No, that’s quite different. That’s quite different. The food market, while it shares that trait that everybody’s in it, it is not a market in which your participation is often unpredictable and often involuntary.
News flash, “General”, your participation in the “food market” is quite involuntary, since if you don’t do it, you die.