I had breakfast with the Swiss Ambassador to the UN, Dante Martinelli, on Friday. Mr Martinelli was talking about Switzerland's role as a host of the UN. The picture he painted made it clear just what hosting the UN means to the Swiss economy. The organisation works as a magnet for all kinds of UN agencies, international organisations, NGOs and ultimately commercial companies. Core to the UN in Geneva are, apparently, organisations such as WHO and UNAIDS.