Seriously, what has Germany done to harm America after the war?
Recent examples: Opel attempting to buy itself out of GM (saved by Gov't bailout), Creditor Deutche Bank National Trustcompany (housing debt), most SV chip machinery comes from DE such as Zeiss etc.
Overall, the single biggest problem is the € and the success of western Europe (it seems one might take Bruxelles bureaucrats for terrorists). Most of the decisions for the € is taken from Frankfurt given it is almost a refitted DM, and which needs to be countered by all means (ie. proxies such as Greece).