That Snowden document advocates doing that, but there is no indication it was being done or had been done or that policy had changed after the report was issued. That is far different than what the parent said: "...the NSA is trawling the whole worlds commucations looking for commercial and economic inteligence, to be fed to US companies."

If there is evidence in the Snowden files that the US DOES do anything like that, please post a link. Finding that there is someone in government who advocates doing that doesn't mean much.