Uh, yeah, they do have factories that employ many Americans right here in mid TN. I know, because they are one of my customers.
I don't believe that Tuesdak was doubting the fact that Bridgestone/Firestone manufactures tires here in the US, but rather was doubting the fact that the company is American owned. Toyota, for example, has manufacturing plants here in US but they are still foreign owned. Cooper and Goodyear are both American owned and manufactured, as far as I know.