A heavy police presence has been reported in several cities, and some gatherings were quelled or failed to materialise. Reports have emerged of people being questioned and their phones searched. But overseas Chinese have continued protesting, in at least a dozen cities across the world. Last weekend's demonstrations had grown after a fire in a high-rise block in Urumqi, western China, killed 10 people on Thursday. It is widely believed residents could not escape the blaze because of Covi...