Nonetheless they have higher penetration of the best stuff than we do.

I think falling behind in technology generally, which is what the US is doing, is a very valid concern and predictor of decline. It was certainly the pattern in Britain during their period of decline - they had the most patents for far longer than most people realize - but the most advanced stuff was manufactured or built, and adopted, in the US or Germany. Add this to all the other indicators, and you've got some real issues that can't be easily dismissed.

Moreover the US needs a new technological boom. That's when all the dollars overseas get repatriated at extremely high valuations (see: internet boom). If foreigners decide there isn't going to be another tech boom they need to buy into, then eventually (and this time seems to be happening) they are going to start wondering why they're holding so many dollars.

... to watch his daily Dora and 'Blues Clues' in German than you won't have any problem to max out your bandwidth.

(DISCLAIMER: Acording to German law a private copy of German TV is legal and you can instruct others to make such a copy - that is the basis of services like onlinetvrecorder.com the copies are encrypted with an indicidual key tied to your ID)