Do skeptics, agnostics and atheists have anything in common with people of faith? The recent popularity of books on both sides shows many opinions but not much evidence of similarities. Theologian Michael Novak, author of No One Sees God, argues that believers and nonbelievers often share experiences, including times of doubt. Does doubt lead to disbelief? Does faith always involve leaving reason behind? In this Beliefnet Blogalogue, skeptic and journalist Heather MacDonald, takes on Michael Novak in a lively discussion. Join this conversation about faith and doubt, belief and reason, and whether there is common ground for believers and nonbelievers.