Edward Snowden confirmed that more secrets on the U.S. surveillance programs would be published, no matter what might happen to him, said the founder of WikiLeaks Julian Assange, on Sunday.

"There is no stopping the publication process at this stage," Assange told ABC's "This Week" television show,. "Great care has been taken to make sure that Mr. Snowden can't be pressured by any state to stop the publication process."

Assange slammed the United States for revoking Snowden's passport and said it would not stop Snowden from revealing more information about the U.S. surveillance programs.

The latest top-secret NSA documents leaked by Snowden show that the National Security Agency has spied on the European Union mission in New York and its embassy in Washington, according to The Guardian.

Edward Snowden has been staying at an international airport in Moscow for a week.

The Russian presidential spokesman Dmitry Peskov told a local radio station that President Putin is not dealing with this issue and prefers to let corresponding services do this job. Thus, the subject is not on the agenda of the Kremlin.

Snowden, who is charged with three felonies by the U.S. government , arrived in Moscow's Sheremetyevo International Airport, from Hong Kong, on June 23.

Snowden could neither cross the Russian border, nor buy another air ticket to fly out, since he does not have a Russian visa and his American passport has been annulled.