other places you see in the central part of china you can reach many other places like southeast asia southwest asia now seizure and the hub for railway stations flights so it's really hard to be in a city with 11000000 population but that means to the chinese government already determined to do so in order to counting the spreading of the wires and also i know that house insurance policy has been changed so for people to get a trade is they do not need to pay out of pocket this is also very unusual because the chinese house system was a model people have to pay upfront but this is quite different for this time and obviously geography is a big part of it and also as you said accessibility because of the train systems but again the city has now been quarantined by the chinese government trains are now moving in and out chichen itza professor at the yale university school of public health thank you so much for your insight on this. time now for a quick break here because when we return. the big. but don't worry they will protect your privacy we'll dig into exactly what that means. the saudi prince who