TSMC is motivated to build chip fabs in several locations throughout the world so that they can reduce their risk from a potential war between Mainland China and Taiwan. However, TSMC is not motivated to share their technology with the host countries which would destroy their business advantages. So, TSMC wants to bring in 500 of its own people into Arizona to set up the factory floor and prepare the equipment for use. Allowing Arizona construction workers to do all that work would be tantamount to a complete technology transfer to U.S. corporate rivals. We need the chip fab here to reduce our own risk of being denied access to cutting-edge chips because of a war between Mainland China and Taiwan, but we do not need to acquire the technology as long as it is safely producing chips in the U.S. We have to make a choice that respects TSMC's business interests or TSMC will spread their risk by building fabs entirely in other countries. Furthermore, construction sites in Arizona are filled with scandalous sub-contractors, workers and illegal aliens, regardless of the high-end engineers and techies that might show up every now and then. Arizona construction sites are not secure from spying. It's just not in the system.