The Supreme Court Tuesday heard arguments in a copyright case brought against file-sharing networks by members of the entertainment industry. Media Correspondent Terence Smith looks at the ongoing debate over file sharing on the Internet. Then, Jan Crawford Greenburg discusses…

Federal Communications Commission Chairman Michael Powell announced in January that he was stepping down in March. Powell has been the FCC chairman since 2001 and a member of the panel since 1998. Two experts analyze the FCC's future for the…