LL COOL J returns to NYC to explore hip-hop’s roots

Grammy winner LL COOL J joins "CBS Mornings" to talk about his new docuseries, "Hip Hop Was Born Here," featuring interviews with legends like Big Daddy Kane, Rev Run and Roxanne Shanté. Each weekday morning, "CBS Mornings" co-hosts Gayle King, Tony Dokoupil and Nate Burleson bring you the latest breaking news, smart conversation and in-depth...…