After months of wrangling, Elon Musk completed his deal to buy Twitter, and immediately sacked several top executives. We ask what’s next for the platform and its users. Organised crime is damaging South Africa’s economy. And our obituaries editor looks back at one of the 20th century’s most daring heists. For full access to print, digital and audio editions of The Economist, subscribe here www.economist.com/intelligenceoffer