[AstralStorm]

I suspect the correct use of Chinese data would make error bars overlap, exposing the BS.

Moreover, they should use the data where miles drive is available, say, from taxi drivers. Oops, that's 0 out of 0 total? :)

For such low incidences, even studentising will not produce right confidence intervals based on normal distribution. Poisson distribution cannot even be used, direct binomial instead, because it is likely that the error due to approximation will be important. (calculate from rule of rare events)