Why is the US so many brilliant scientists?

Why is the US so many brilliant scientists?

The US has the worst education system from all that I know. Knowledge of our graduates is lower than in the third world. How, then, the US scientific elite have not yet suffered a collapse? We are producing a generation of idiots - watch our TV and reality shows. And I can tell you that America has a secret weapon called "visa for foreign scientists to H-1B". Forget Google, forget about Silicon Valley - all did not the Americans, and immigrants. USA suck the best brains from around the world - India, China, Russia. And we ourselves are only the fruits of idiots.

Michio Kaku