Actually it was probably a C4 broadcasting mistake more than anything else.. I was at the Katie Taylor fight and Cameron was there and was interviewed.. boos hisses etc.. and all sorts of chanting... he had to stop because he wasn't being heard.. on the BBC afterwards saw the interview and it was all cleaned up.. couldn't hear much of the crowd at all. Also went to the Olympics Women's football final -- who walked out at the medal presentation afterwards --Sepp Blatter the head of FIFA who said women footballers should wear tighter shorts -- 80 odd thousand shouting , booing whistling etc.. could you hear it on the BBC ? no. So I suspect this just happens to be one of those cases where the guys weren't ready with the clean up in time.