Plame Gossip - Fitz says the investigation continuing

This inference is drawn from a statement in the Dow Jones/WSJ filings from yesterday.

Prosecutor Patrick Fitzgerald's comments contained in court papers filed Friday will fuel more speculation he may still be mulling new charges in the case.....

Fitzgerald called for continued secrecy to ensure that prospective witnesses "come forward voluntarily and will testify fully and frankly, and to prevent any efforts to obstruct the investigation," he wrote.

Interesting language, "voluntarily, fully, frankly, prevent obstruction", all in one sentence. Is that a threat?

TalkLeft has a good post on this filing. And Jane Hamsher does a little tea leaf reading on the same filing.