Liberal justices raise alarm about Supreme Court's weakening of federal agency power ( www.nbcnews.com )

The ruling was one of three delivered in the final week of the court's term that cast blows against the powers of federal agencies. All were decided 6-3 on ideological lines, with the court's conservatives in the majority.

And in all three, the liberal justices did their utmost to draw attention to their broader concerns about the court’s chipping away at the powers of federal agencies to issue regulations in areas such as the environment, worker safety and consumer protection.