Roberts Switched Views?

An insightful article on the process behind the Supreme Court's healthcare decision:

Some informed observers outside the Court flatly reject the idea that Roberts buckled to liberal pressure, or was stared down by the President. They instead believe that Roberts realized the historical consequences of a ruling striking down the landmark health care law. There was no doctrinal background for the Court to fall back on - nothing in prior Supreme Court cases - to say the individual mandate crossed a constitutional line.