"Forty years have passed since my parents were pursued by the KGB for pursuing the simple right to read, to write, to listen to what they chose and to say what they wanted. Today, the world they hoped for, in which censorship would fall like the Berlin Wall, can seem much closer: we live in what academics call an era of ‘information abundance’. But the assumptions that underlay the struggles for rights and freedoms in the twentieth century – between citizens armed with truth and information and regimes with their censors and secret police – have been turned upside down. We now have more information than ever before, but it hasn’t brought only the benefits we expected."