U.S. regulators called on a federal appeals court to deny petitions for a review of media ownership rules that were loosened in 2008. Federal Communications Commission Chairman Julian Genachowski said the brief, filed Wednesday with the U.S. Court of Appeals for the Third Circuit in Philadelphia, defended the agency’s authority to make the changes to media ownership rules but made no comment on the substance of the rule changes.

The changes, made before Genachowski was appointed last year, would make it easier for cross ownership of different types of media outlets in the same city or region. Read about how the courts kicked this problem down the road because they don’t want to actually solve it…