INTERVIEW. Daughter of Polish Jewish refugees who fled the war to settle in Latin America, Rebeca Grynspan is an economist and diplomat. A well-known figure at the United Nations, she is now the Costa Rican candidate to succeed António Guterres as Secretary-General of the UN. Paris Match. We are living in a period where international cooperation is under intense pressure and where the legitimacy of multilateral institutions is increasingly being questioned. You have expressed your ambition to