David Robertson is a Scottish church pastor and author of “The Dawkins Letters”. He recently hosted the first Conference of the newly established Solas Centre for Public Christianity.

As a key respondent to Dawkins he has earned himself the nickname “The Wee Flea”. He takes questions from three skeptics on today’s prgramme.

Stephen Lees has come to doubt his once-held faith. He asks whether Christians are obliged to believe the miracles of the Bible. Agnostic Stephen Pilcher asks how it can be fair for God to send people to hell who simply don’t find enough evidence for his existence. And atheist David Moser asks how prayer to an all knowing God makes sense.