I just need to say that Llewellyn King irritates me at times. Obviously a very eloquent man providing valuable advocacy for us, but also prone to interrupting and talking over people that he interviews. Thinking about it as I type, this always irritated me immensely when I was still working, as it frequently meant that I lost track of what I was saying and had to mentally 'reboot', so I guess I'm just projecting that on to him, but knowing that still doesn't stop it winding me up. And despite that bugbear of mine, I think it's a great interview, and I also agree with @Joel , I also rate Dr Nahle.