Since 1945, only five legally-confirmed genocides have been recognised by the British government: the Holocaust, Rwanda, Bosnia, Cambodia and the liquidation of the Yazidis by Islamic State. Between the Srebrenica massacre – the last time the International Court of Justice (ICJ) delivered a guilty verdict – and Myanmar, times have changed. As part of the hearing this week, hostile Facebook posts were presented as evidence. Social media has become part of life since 2007, but there are fears that relying upon such contextual and emotive ephemera may eclipse the hard facts, especially as the ICJ’s next case is against Israel....