yes TNC uses private funds but what they do so many times is buy from a willing seller, ranchers, and sell to the USFS, BLM, or some other Government agency at an inflated price, making a profit on the deal with the government, thereby "using" taxpayer money to finance their organization which is still listed as a nonprofit charitable organization. RANGE magazine has written so many articles on the dealings of TNC, some of which are probably biased but there is no wasy you could convince me to trust them at all. No they do not receive tax dollars directly, but they have their ways.