The opinion can be downloaded here. Relevant quotes from the majority opinion can be found here, and a replay of our LiveBlog can be found here. Tom's commentary is here.
Answering a 217-year old constitutional question, the Supreme Court ruled on Thursday that the Second Amendment protects an individual right to have a gun, at least in one's home. The Court, splitting 5-4, struck down a District of Columbia ban on handgun possession. Although times have changed since 1791, Justice Antonin Scalia said for the majority, "it is not the role of this Court to pronounce the Second Amendment extinct."
Examining the words of the Amendment, the Court concluded "we find they guarantee the individual right to possess and carry weaons in case of confrontation" -- in other words, for self-defense. "The inherent right of self-defense has been central to the Second Amendment right," it added.