Len Nichols, a health economist who teaches at Virginia's George Mason University, says without a requirement for coverage, Congress might have to find another way to make the consequences of not having insurance even more dramatic. For example, he says, perhaps if people don't buy insurance when it is first available, "if you ever try to buy insurance again, you'll have to pay three times the market price, and we will put a gold sticker on your forehead and say to all hospitals, 'You do not have to treat this person; this person has forfeited their right to uncompensated care.'...