As regards the responsibility of the media in particular for the polarisation of society, I'm reminded of a quotation attributed to Sun Tzu, to Petrarch, and most recently to Michael Corleone in The Godfather 2, : "Keep your friends close, but your enemies closer". We need to know what those who oppose us and perhaps threaten our freedoms are thinking. For example, our intelligence services will currently be closely analysing what is being printed in Pravda, and will be staying tuned in to Russian state radio and TV. So yes, media is most certainly responsible "for fuelling polarisation of society", and not just at local, National level. Frankly, it always has been, so is anyone really surprised, and did we need Obama to point that out? I doubt it.