 The capital city of Dhaka is seeing a near-total internet blackout, with phone lines also down. Now, the government has been trying to quell the protests, switching off the country's mobile internet in an attempt to slow the protests. Now, you may think of Rome or Paris when asked about cafe capitals of the world, but China reckons it might be a new contender. That's what Shanghai's local government claims anyway. But the vast number of cafes has led to fierce competition, as the BBC's Stephen McDonnell reports.