here's our asia pacific editor celia hatton on that rapid transformation. back in the �*90s, china decided to start a going—out strategy, and that's because china had a lot of domestic problems it needed to address. it had too much for currency because it had imbalanced trade with lots of countries overseas. it had industrial overproduction, so it had too many factories making things that weren't being used, and so it decided to invest a lot of that currency overseas in big infrastructure projects because that's what chinese companies are really good at. they're good at building railways, they're good at building ports and dams, and so this spending started to snowball. many loans are being lent by chinese banks, and in some cases, the details are being kept secret from chinese officials. critics fear that secretive loans are saddling poorer nations in sky—high debt. celia has this example.