There are fees on airline tickets in the US that pay for TSA services. Whether that is their sole source of funding or not I don't know. I imagine that at lea

There are fees on airline tickets in the US that pay for TSA services. Whether that is their sole source of funding or not I don't know. I imagine that at least some of the renovations that have been done at various airports to house larger screening facilities have been paid for out of general tax dollars.