South Africa’s President Cyril Ramaphosa that a private meeting with Russian President Vladimir Putin ended with an agreement that the two countries would discuss a nuclear power deal in the future. Ramaphosa has put nuclear expansion on the back burner since taking office in February, saying it is too expensive, and has focused instead on pledges to revive the economy and crack down on corruption. His scandal-plagued predecessor, Jacob Zuma, had championed a deal to dramatically increase South Africa’s nuclear capacity despite concern from ratings agencies that it would deal a further blow to the country’s already strained public finances....