The race for artificial intelligence has hardened into a two-power contest between the United States and China, fought over rare earths, data and the rules governing the technology, with Latin America and Europe sidelined, Brazil’s top foreign policy adviser said on Tuesday. Celso Amorim, a former foreign and defence minister, made the case at the Forte de Copacabana International Security Conference in Rio de Janeiro, an annual forum run by the Brazilian Centre for International Relations with...