If we don't believe in an interventionist God then why are we still driven to pray about world events? Why, despite the questions and the difficulties of prayer, do we still find ourselves on our knees in the face of what's happening in the world? Plus there is feedback on seeing good and evil within human beings, and whether the best prayer is 'thy will be done'. Also, Joe thinks that Nick might just have ruined his life.

• Christian aid prayer for Afghanistan