New manuscripts discoveries in Biblical studies are often outed as forgeries, But sometimes -- rarely -- they turn out to be authentic.

How do scholars distinguish between fact and fiction, especially when they only have access to photographs or copies? Is it possible for a text to pass all authenticity tests and still be a clever forgery?

Today we're back with Dr. Morton Smith and the Secret Gospel of Mark to discuss he discovered an actual ancient document with unknown information about Jesus, or turned up a forgery of some kind, or possibly even forged it himself.