If only we could get an American to enter F1 . .
Stretch 8, I don't know how closely you follow F-1 news, but there is apparently a strong possibility that former CART and current ALMS driver Bryan Herta will drive one of the Minardis for the last three races of the season (which would include the USGP). Alex Yoong is being "rested" for a while after failing to qualify for a few races. Herta completed a "test" of sorts by driving a Minardi at a UK publicity/charity event over the weekend, and all were apparently favorably impressed. Sure, the Minardis are back-of-the-grid moving chicanes, but it is still F-1, and can lead to bigger and better things.
Aside from that and the Red Bull US driver search program, I don't think we'll see any Yanks in F-1 anytime soon. As soon as a good young American driver gets any notariety in open-wheel....he goes over to Dark Side (NASCAR) to drive tube-frame taxi-cabs in circles at 3/4 speed