"Even before [the Supreme Court's desision], there were those who feared that many Americans would pay the tax rather than purchase health insurance. The Obama Administration itself estimated that four million Americans will choose to pay the tax instead of acquiring health care coverage. Chief Justice Roberts' opinion invites Americans to do just this. Because Congress precluded the IRS from using many of its standard enforcement techniques to collect this tax, many Americans will simply decline to pay the tax -- without anything happening to them."