Documents Show Kagan's Liberal Opinion on Social Issues

Elena Kagan has kept her cards so close to the vest that in the days after President Obama nominated her to the Supreme Court, some on the left worried she was too moderate to replace liberal Justice John Paul Stevens. But in documents obtained by CBS News, Kagan -- while working as a law clerk to the late Justice Thurgood Marshall -- made her positions clear on some of the nation's most contentious social issues.