Excellent interview - one of your best, and certainly the best overview of the standard model and the Higgs that I've heard. It helped, obviously, that Harry Cliff is a great communicator, but you gave him the space to speak, with about the right amount of interruptions. It's interesting to compare this interview with the one you did some months ago with Leonard Susskind, another great communicator whose ideas are the most interesting that I've come across. With Susskind, the interview didn't 'click' somehow - I'm not sure if it was your respective chemistries or styles, but I think it would be worthwhile trying again sometime with Susskind. I don't agree with your comment about Cliff being the UK equivalent to Neil deGrasse Tyson, I think Cliff is a far better communicator of science.