"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. Here's a layman's guide to the significance of the case:

- Heller will be decided on originalist grounds. Among law professors, enforcing the original meaning of the Constitution is highly controversial. Critics of originalism deny that we should be ruled by the "dead hand of the past." They prefer following Supreme Court precedents that may or may not be consistent with original meaning. Any justice who today professes a commitment to originalism is branded a radical; and all Supreme Court nominees are now grilled on their commitment to the doctrine of stare decisis. But what are old precedents if not the "dead hand" of dead justices?"

Whatever you think about the originalist view -- I happen to like Scalia's contrast:  "Perhaps the most glaring defect of Living Constitutionalism, next to its incompatibility with the whole antievolutionary purpose of a constitution, is that there is no agreement, and no chance of agreement, upon what is to be the guiding principle of the evolution." -- it will be history in the making as the Supreme Court walks through Heller.

Randy Barnett reviews the key issues in The Wall Street Journal.