Given the stakes, one might have expected all the court's members to be very careful in speaking about both health care realities and legal precedents. In reality, however, the second day of hearings suggested that the justices most hostile to the law don't understand, or choose not to understand, how insurance works. And the third day was, in a way, even worse, as antireform justices appeared to embrace any argument, no matter how flimsy, that they could use to kill reform.