Tonight on Amanpour and Company: Thierry Arnaud, Senior International Correspondent, BFMTV & Nathalie Tocci, Director of the Istituto Affari Internazionali / Foreign Policy Advisor; Dr Sania Nishtar, CEO, Gavi, The Vaccine Alliance; Tina Fordham, Co-founder & geopolitical strategist, Fordham Global Insight. Michel Martin interviews Edward Fishman, Author, Chokepoints.