Throughout American history, the Constitution has been the document that defines the powers of the three branches of government.&nbsp; At least it was designed to do that.&nbsp; And, once again, it has been brought to the nation's attention as the debate over the constitutionality of the Affordable Care Act (ACA) was argued last week in front of the Supreme Court.&nbsp; Are we, as a country, worried about the Constitution?&nbsp; What do you think?&nbsp; <a href="http://www.nationalreview.com/articles/294985/constitution-s-comeback-michael-barone">www.nationalreview.com/articles/294985/constitution-s-comeback-michael-barone</a><br />