Supreme court: Sotomayor starts, Stevens leaving?

The Supreme Court begins its annual term this morning with a packed agenda. Among other cases, they’ll be hearing about gun rights, dog-fighting videos, corporate political contributions and the First Amendment. Plus, it’s Justice Sonia Sotomayor’s first day on the job, and there are rumors that Justice Stevens is on his way out. For more, we turn to Dahlia Lithwick, Supreme Court correspondent and senior editor at Slate Magazine.