When a non Tax is a Tax

When is a non-tax a tax?

Opinion link presented without much comment as I've only browsed the syllabus and read the early part of the dissent, which would have struck down the entire law.

http://www.supremecourt.gov/opinions/11pdf/11-393c3a2.pdf

2012-06-29:

The Solicitor General argued on the first day of oral argument that Obamacare was not a tax. Justice Alito even commented that day that the SG would be back tomorrow to argue it was. And he did just that. So the court declares it IS a tax, after the President and his allies had claimed it was not a tax, and now today, the White House is claiming that Obamacare is NOT a tax!