Interesting article on Yahoo news site today....750 Million people around the world use English as their 2nd language...add to that the populations of the USA, Australia, New Zealand, several African countries and the UK who all use it as their first language and we have something like 1.25 Billion of the worlds population speaking English either as their first or second language....reason enough one would think for it being the international radio language...next would probably be Spanish followed by Russian...yes Chinese would be widely spoken but Canton or Mandolin ? and anyway it's spoken rarely outside of the Chinese mainland...