William Paul Young's uber popular book, The Shack, has sold millions of copies and is now a feature film. Some are raving fans. Others resist and even attack it for being heresy -- chock-full of erroneous information about God, Jesus, the Bible etc. Conservative Christian thought leader Albert Mohler says that the book "reveals a disastrous failure of evangelical discernment." Is he right? Pastors Rick Henderson and Mike Bell discuss.