Your comment suggests that you fundamentally misunderstand the process of scientific discovery and innovation, how the American scientific ecosystem works, or how the economic and technological return on scientific investment has helped to propel the US for the last 70 years.
.. with that a lot of things wouldn't be researched then, because it's too expensive or some figures mismatch or ROI is not enough. Who's private would build LHC to find the answer to some theoretical questions - no one, except public-backed players. So it's IMHO and logically wrong, if one wants to have science.