content: White House considers restrictions barring Chinese citizens from engaging in sensitive research at U.S. universities. Why has this not happened already? Michelle Van Cleave, a former counterintelligence executive under President George W. Bush, testified at a recent congressional hearing focused on espionage and higher education that American research and development is "systematically targeted by foreign collectors to fuel their business and industry and military programs at our expense."  "China and Russia both have detailed shopping lists of targeted U.S. technologies and specific strategies for clandestine acquisition ranging from front companies to joint R&D projects to cybertheft to old-fashioned espionage," Van Cleave said. "U.S. academic institutions, with their great concentration of creative talent and cutting-edge research and open engagement with the world of ideas, are an especially attractive environment for these kinds of activities. Let me say the numbers are frankly staggering: for every dollar we invest, some $510 billion annually, we lose most if not all of that equivalent amount to these kinds of illicit activities every year." -- http://www.insidehighered.com/news/2018/05/02/white-house-reportedly-weighs-restrictions-chinese-citizens-doing-sensitive-research Edit:  There's stolen tech all over the J-20.  A lot of it is old stuff that was filed away and forgotten.  The scary thing is, not only did China steal it, but they had people who knew the value of what they stole when it had been largely forgotten here in the US.  Actually, I'm not sure which part of that is more disturbing.