The best difficult conversations I've had were conducted over email. Everyone was able to speak without interruption. People could cry with no fear of recrimination. Each message was digested and understood at each person's individual pace. Exact quoting was possible.
Face-to-face confrontation is too often about expressed emotion, rather than the emptional content of what we're trying to say
At the same time, I am against confrontation via text, Facebook, Twitter and the like.