Bob Dylan's new album, "Modern Times," is earning praise for its minimalist arrangements and brooding lyrics about romance, faith and mortality. It's also being criticized for what at least one critic calls its outright thefts of other music – snippets of old blues songs and Chuck Berry. Today, we parse Dylan's sources and inspirations with Rolling Stone editor Joe Levy, and Wall Street Journal music critic Jim Fusilli. Also: British scholar Michael Gray joins us to talk about "The Bob Dylan Encyclopedia," the culmination of over thirty years of dedicated research and scholarship.