Covid-19 in old Hong Kong blocks, subdivided flats sparks strategy rethink
A fast-growing outbreak in ageing tenement buildings in Jordan has prompted calls for a more proactive approach.
Documentary about the cryptocurrency Bitcoin: Bitcoin: Beyond The Bubble - What is Bitcoin? With the advent of Bitcoin, the world's premier digital currency, for the first time in history money is no longer controlled by banks or governments, but by the people who use it.