The revisions reflect a pronounced shift by Atty. Gen. Eric H. Holder Jr. away from an aggressive policy toward reporters, especially those involved in divulging classified national security information.
This week the Justice Department announced it would not subpoena New York Times reporter James Risen in the trial of former CIA officer Jeffrey Sterling for allegedly revealing intelligence secrets about Iran to Risen, ending a six-year legal battle.
Federal prosecutors in Virginia had said that Risen's testimony was critical to their case, but Holder stepped in last year and said that they could ask only for very basic information that was of little value to the case.
The changes announced by Holder on Wednesday include a small but significant alteration of one phrase. New guidelines issued last February protected reporters engaged in "ordinary news-gathering activities," which appeared to be a loophole leaving open to interpretation what prosecutors considered "ordinary."