The conviction of U.S. Army Pvt. Bradley Manning on espionage charges Tuesday makes it increasingly likely that the United States will prosecute WikiLeaks founder Julian Assange as a co-conspirator, according to his attorney and other civil liberties groups.

Judge Denise Lind, an army colonel, found Manning guilty of several violations of the Espionage Act, and he could face life in prison. Press freedom advocates said the verdict adds to their alarm that the Obama administration's aggressive pursuit of leakers will discourage whistle-blowers from providing critical information on military and intelligence matters.

Military prosecutors in the court-martial portrayed Assange as an "information anarchist" who encouraged Manning to leak hundreds of thousands of classified military and diplomatic documents. And they insisted that the anti-secrecy group cannot be considered a media organization that published the leaked information in the public interest.