what else? I haven't watched THE SECRET CARIBBEAN with TREVOR MCDONALD yet....but I can now remember the following....MI5 had found out that during filming....trevor had confronted 'somebody' upon a very important issue - he had been doing a bit of investigative journalism....to meet with a  very non-committal response let us say......the interviewee was to pretend that they had no idea of what he was talking about...anyway, daldry was to put the above cartoon in, as a reminder...