Ya sure? The Chicoms have spy's right here. likely hundreds of them. Ya don't need a physical attack, to understand you can be undermined or harmed.
Thousands. They are grad students in our universitites. Many eventually go back when they've garnered enough technical information or wormed their way into part of a long term stint in a government-funded research program.,p> They even get to pay in-state resident tuition in most places now because the requirements of residency are a year's living there with an address.