And you don't need FOIA or "fact-checking" for this. Just check out the Wikipedia article. Here's the revision as of when this post was published:
https://en.wikipedia.org/w/index.php?title=Tor_(anonymity_ne...
> The EFF acted as The Tor Project's fiscal sponsor in its early years, and early financial supporters of The Tor Project included the U.S. International Broadcasting Bureau, Internews, Human Rights Watch, the University of Cambridge, Google, and Netherlands-based Stichting NLnet. From this period onward, the majority of funding sources came from the U.S. government.
Clicking the link about the International Broadcasting Bureau shows its affiliation with the various Radio Free organizations, which are a) definitely sponsored by the US government b) definitely in places the US wants "regime change" from, and c) definitely incentivized to be anti-surveillance instead of pro-surveillance.
The US govt isn't a monolith - of course there will be some arms going at "cross purposes" like supporting encryption while the NSA worries about the rise. That doesn't mean it poisons everything connected to government funding, or else I have some bad news about 90% of university research grants.
tl;dr his claims are widely known. he is trying to sell books.