Plenty said that. The problem is that the reports are old with Google et al prioritizing new, ad-generating content. Even if you have links, many of those pages' links will be dead. It's online decay. I just spent an hour trying to find some reports of it from mainstream sources based on pieces of things I remembered. Here's two:
http://articles.baltimoresun.com/1996-11-01/news/1996306048_...
https://nypost.com/2000/07/10/giant-u-s-spy-vacuum-sparks-a-...
A lot of it happened in the Advocacy Center and/or Office of Executive Support. The European Parliament's report on Echelon talks about some of it:
http://www.europarl.europa.eu/EPRS/EPRS_STUDY_538877_Affaire...
Far as that last part, the U.S. does something quite different: a corrupt Congress makes patent and copyright laws so ridiculously strong that they make compatability/competition with big, U.S. companies anywhere from difficult to impossible. The best examples are in smartphone market where Apple tries to block Chinese and Korean products. Microsoft also pulled in about a billion in Android royalties despite not contributing anything to Android's success.
Also note that a lot of Silicon Valley heavyweights started out with big funding from the government, esp DARPA. Kind of similar to state-sponsoring of companies in China. From there, the U.S. companies legally rob or block competition via vaguely-worded, broad, long-lasting patents. Recently, competition blocking API rulings. The Chinese do it via spies and suppliers that iterate fast. I don't see one having moral high ground over the other if they're both doing things that harm the many to benefit a tiny, rich few legally backed with bribery or other corruption.