I am concerned by Canada's recent arrest and possible extradition of Huawei chief financial officer Meng Wanzhou. Ms Meng was travelling in Canada, switching planes using a Chinese passport, when she was taken into custody. If sent to the US, she would face charges of trying to defraud US financial institutions, each carrying a maximum sentence of 30 years.
My more general worry is that the Western world is overusing the power of its systems of legal and economic cooperation. It is threatening to pull that access when people or institutions do things it doesn't like, and more domestic laws are taking on a global reach.