NPR's Scott Detrow speaks with Johnny Cash historian Mark Stielper and Cash's son, John Carter Cash, on their book, Johnny Cash: The Life in Lyrics and the Man in Black's legacy as a songwriter.
On Friday, Johnny Cash's posthumous album "Songwriter" released after more than 30 years in the making. The "Hurt" and "Ring of Fire" singer died in September 2003 due to complications from diabetes, ...