April 6 marks 30 years since the start of one of the most horrific events in modern history, the 1994 Rwandan genocide. I have not spoken at length about what those years in a Rwandan prison were like, or about the daily reality for Rwandan political prisoners who, like me, found themselves behind bars for exercising their freedom of expression. At many times during my captivity I believed I would be silenced for good, and that I would never again see my wife, my children and my grandchildren.