Our own Randy Barnett has an op-ed in today's WSJ, "Gun-Rights Showdown," discussing today's oral argument in D.C. v. Heller. Here's how it begins:

Today, the Supreme Court will hear oral arguments in the case of Heller v. District of Columbia, a suit brought by several D.C. citizens contending that the ban on the possession of operable firearms inside one's home violates the Second Amendment. The Circuit Court of Appeals for D.C. agreed and held the ban to be unconstitutional. However it is decided, Heller is already historic. For the first time in recent memory, the Supreme Court will consider the original meaning of a significant passage of the Constitution unencumbered by its own prior decisions. The majority and dissenting opinions in this case will be taught in law schools for years to come.

Read the whole thing.