https://www.theguardian.com/technology/2018/dec/06/john-bolton-huawei-cfo-meng-wanzhou-arrest-extradition-us

National security adviser said US had long been concerned about role of Chinese tech companies in theft of technological knowhow

The US national security adviser, John Bolton, has said he knew in advance that a top Chinese telecoms executive would be arrested in Canada to face extradition to the US, in what is escalating into a major diplomatic incident.