DOJ is siding with RIAA in a downloading case

Arrgh. RIAA took some single mother to court for downloading and obtained a $220,000 judgment against her. Story here. Why is my government siding with the record labels? Does not the RIAA have enough lawyers already? Why is the US Dept of Justice getting into the act? Do the Republicans have a political death wish? Surely it ain't worth the wrath of a lot of voters to curry favor with the labels?