China has put 33 million people on lockdown because of the coronavirus outbreak. An urban planner says there's no way to seal off a city.

5:33am PST - January 25th, 2020    chinese new year 2020 - Business Insider

At least 12 Chinese cities have been put on lockdown as a deadly coronavirus spreads across the country. The virus has killed 41 people and infected nearly 1,300. It has spread to at least 10 countries outside China, including France, Australia, and the US. T…