let's get over to tom giles. this is a tit-for-tat here. a comes back, basically taking on the u.s. and its own form of regulation. tom: it is almost like holding up a mirror to the bands and the restrictions the u.s. has placed on china so far. a newosed restrictions or classification of restriction, and suddenly we see something similar, something reciprocal from china. now we see this new -- basically, it is china giving itself more leeway, more freedom to oppose limits on the export of key technology. as you point out, caroline, there is a huge trade war between the two countries. you know, there's all kinds of rationale for it. china and the u.s. will talk about how they don't want trade secrets to be stolen. they are worried about national security. ultimately, both countries want to have privacy. they want to have leadership in key technology's. in certain areas like chip manufacturing, and they also have an exam dig -- an advantage in certain areas. aspects of 5g, artificial intelligence. people give up their data much more readily i