It's standard for many multinationals and universities to provide blank secondary devices for travel to China that are synchronized with data after getting past the border. They are then erased after one gets back, because Chinese intelligence has broken into hotel rooms and installed keyloggers before.
Adding the USA to the list of countries where this is done would increase costs but it wouldn't be some nightmarish unprecedented problem.
Adding the USA to the list of countries where this is done would increase costs but it wouldn't be some nightmarish unprecedented problem.