Gil Scott-Heron 'was first and foremost an activist,' fellow poet says

Rock & Roll Hall of Fame inductee Gil Scott-Heron had a profound influence on many aspiring poets including Malik al-Nasir and his band, Malik and the OGs. Nasir joined The World's host Marco Werman to talk about his lifelong connection with Scott-Heron recounted in his new book, "Letters to Gil."