About Yang Xia
I like the word "resilience", in fact, resilience is a popular conception these days.
But, if one wants a resilient society, it should protect its citizens efficiently, apparently, London and Paris are not good examples.
In this regard, maybe we should throw some words on the importance of 'social resilience'. Actually social resilience is a multi-facet concept. It doesn't necessarily mean that a city will be never under disastrous risks, more importantly, it emphasizes the capacity of social groups and communities to recover from, or respond positively to, crises.