As the justices return to the bench this week, the new term will feature major disputes on affirmative action, voting, religion, free speech and gay rights. The Supreme Court’s first case of the new term involves a major environmental dispute over the federal government’s power to protect the nation’s waterways under the Clean Water Act. The justices will also weigh a voting rights case that tests the legal limits on alleged racial gerrymandering, which involves the drawing of voting maps in a manner that dilutes the electoral power of racial minorities. Tune in this morning as Tom Dunlap reviews these two important cases.