"While one must always be cautious in seeking government investigation of the media for the obvious First Amendment concerns..."

"... this is not actually an investigation of the media, but an investigation of criminal acts undertaken by those masquerading as members of the media."

Eliot Spitzer, writing in Slate, thinks the Murdoch scandal (although it's occurring in the UK) is "an opportunity for the Justice Department to show it can flex its muscles at the right moment."