Hi everyone, was browsing and found this site and figured you guys could help me. I've been doing some reading about national missile defense, and was wondering if we even need to be worried here at home. I mean, I would think other countries wouldn't have good enough missiles to reach the US. Shouldn't we be more worried about our troops overseas?? Does anyone know anything about some of the missiles that countries like Russia and China and the likes are selling around the world. What's the threat really???