Sincere question. This was created with US government funding. Is there any reason to believe it is safe?
Tor's development team aren't on the payroll of the US gov't, and their funding comes from many sources.
If having received funding from a government agency is enough to earn your distrust, you'd quickly become a paranoid schizophrenic.
That's not serious. From the Tor official blog:
> U.S. Government (53.5% of total revenue)
> Individual Donations (28.5% of total revenue)
> Non-U.S. Governments (7.5% of total revenue)
> Foundations (6.4% of total revenue)
> Corporations (3.4% of total revenue)
> Other (0.6% of total revenue)
https://blog.torproject.org/transparency-openness-and-our-20...
(Funnily, Signal also received major funding from US government sources but very few people seem to question that when lauding Signal.)
And I cannot name an organization I would trust to tell me the truth if doing so will jeopardize its funding.
So my answer to your sincere question: no reason to believe it is safe, no.