This is a fairly brief yet sufficiently thorough answer to the responses Harris received to his previous book The End of Faith. It further addresses the problems with faith on both the intellectual, practical and moral levels in society, covering basically the same points as The End of Faith but more succinctly and focusing specifically on trying to counter the claims made by the religious believers who made the effort to contact him after the last book. It is written as a letter to the typical Christian believer in the United states and as such, deals with a characterization of this hypothetical individual and justifies this by statistics collected in national surveys showing what specific beliefs about reality are held by the majority of the Christian populace in modern (in temporal terms, though not in terms of development) USA. The argument is, as always with Harris, clear, rational, to the point and reliant on scientific facts and a basic skeptical and empirical mindset. It is a nice complement to The End of Faith, which should definitely be read first.