New York Times reporter James Risen called the Obama administration “the greatest enemy of press freedom that we have encountered in at least a generation” on Friday, explaining that the White House seeks to control the flow of information and those who refuse to play along “will be punished.”

Poynter reports that Risen made the remarks while speaking at Sources and Secrets conference — a meeting of journalism, communication and government professionals held in New York City. The foreign policy reporter, who is currently fighting a fierce court battle with the federal government over his protection of a confidential source, warned that press freedom is under serious attack in today’s America.

In a speech kicking off the conference, Risen claimed that the Obama administration wants to “narrow the field of national security reporting” and “create a path for accepted reporting.” Those who stray from that path, he cautioned, “will be punished.”