Is there ever such a thing as a 'hopeless case'?

Are some things just too difficult to forgive? Like child abuse at the hands of a trusted family friend? Greta Randle's story [in this new book] shows us that forgiveness is not only possible, but that it is hugely liberating for the victim.

When is it right to talk, and when is it not? Christianity has a long tradition of 'testimony' - but does this add pressure to sharing? How can we talk usefully about the past and not merely repeat the event?