On Thanksgiving, radio stations around the country will play Arlo Guthrie's 1967 "Alice's Restaurant." But why is this 18-minute song about littering and Vietnam considered a Thanksgiving song? KUNC's Colorado Edition put that question to Margot, music host from our sister station 105.5 The Colorado Sound. Erin O'Toole: For those who aren't familiar with the song, could you describe it? Margot: "Alice's Restaurant" is based on a true story of something that happened to Arlo Guthrie and his friend Rick Robbins, who is also a musician. They were home for Thanksgiving, and they were hanging out with their friend Alice...