http://adf.ly/1SZdI2, http://adf.ly/1XIsTW, http://www.ctvviet.com, http://www.nhac24.com <br />Modern-Day Slavery; Tires That Could Charge Your Car; Tech in Retrospect <br />Today's show begins with a look at what declaring their candidacy helps presidential hopefuls do. CNN Student News also examine the issue of modern-day slavery at a time when there are more slaves worldwide than ever. And a pair of technology stories look to the future of tires and how music players of the past are influencing the present.
