This year marks the 25th anniversary of the Rwandan genocide, in which the country’s ethnic Hutus slaughtered around 800,000 people, mostly Tutsis, in 100 days. Although plenty of survivors, politicians of the day and those responsible for the killings are still around, the details of what happened remain hotly contested. Linda Melvern, whose third book about the genocide, Intent to Deceive, will be published in April, argues that there has been a “campaign of denial” by a network