Timothy Garton Ash asks whether we have the media we need to really exercise our right to freedom of expression? He examines the diversity of voices across the media landscape and wonders whether the ownership structure of Britain's media industry is conducive to free speech. Are we able to understand what is happening in our government so we can exercise clear judgment on public policy? Are we being told the Truth with a capital T? With the advent of the internet, there is a plethora of ways in which we are now communicating, especially using social media networks like Facebook. But is the algorithm used for news feeds showing us only what we want to see, rather than what we need to see? Producer: Nina Robinson