Dave Grohl: "I Was Scared" to Write About Kurt Cobain

Dave Grohl is best known as the Foo Fighters' front man and former Nirvana drummer. In his newly released memoir "The Storyteller," the 16-time Grammy winner relates his story of growing up in Washington, D.C., touring as a teenager, and his friendship with the late Kurt Cobain. Grohl speaks with Hari Sreenivasan about grief -- and finding rhythm in unusual places.