MR BERGER
So there can't be endless cross-examination on collateral issues, that position is clear.  The second thing is, when we lead a witness and we lead a witness on a full story, we do that because we don't want to be seen to be leading in the unacceptable sense of the word, so we say tell your story, and in the process of telling a lot of things which are common cause, so the issue in dispute gets dealt with in a way that isn't leading the witness in the unacceptable manner.  So that's why we ...(intervention)