I had posted a link to Guinness’ review some time ago.
Frank Schaeffer responds:
“Close personal connections would usually disqualify someone from writing a review of a book if what he writes is to be presented by a serious and normally scrupulously fair publication. To put it mildly, Os Guinness [“Fathers and Sons,” March/April 2008] is not objective.”
– read his entire response here.
Os Guinness answers Schaeffer’s rejoinder at the end of Schaeffer’s response.