I’ve been in a meeting where the Chinese professor in USA on a joint country course sends many of their students to a technology conference and I’m not sure how

I’ve been in a meeting where the Chinese professor in USA on a joint country course sends many of their students to a technology conference and I’m not sure how, but most of his students who attended the conference somehow decided to write their reports on US military uses of technology instead of what Facebook or Google demoed. This meeting had students attend from both China and USA. I’m sure he has plausible deniability, but I left that meeting thinking wow that professor is really a spy. This was before the pandemic.