In the first of ARTICLE 19’s podcasts exploring the limits and challenges to freedom of expression, journalist and writer Jo Glanville talks to María De Vecchi Gerli, right to truth and accountability co-ordinator for ARTICLE 19 Mexico and Central America, Satko Mujagić, a survivor of Omarska concentration camp, currently working at the European Commission,  and Sandra Peake, Chief Executive of WAVE Trauma Centre in Northern Ireland, about why the truth matters and what it takes to fight against impunity.