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Lawyer for WikiLeaks' Assange says he would fight charges

WASHINGTON -- WikiLeaks founder Julian Assange will not willingly travel to the United States to face charges filed under seal against him, one of his lawyers said, foreshadowing a possible fight over extradition for a central figure in the U.S. special counsel's Russia-Trump investigation.

Assange, who has taken cover in the Ecuadorian Embassy in London, where he has been granted asylum, has speculated publicly for years that the Justice Department had brought secret criminal charges against him for revealing highly sensitive government information on his website.

That hypothesis appeared closer to reality after prosecutors, in an errant court filing in an unrelated case, inadvertently revealed the existence of sealed charges. The filing, discovered Thursday night, said the charges and arrest warrant "would need to remain sealed until Assange is arrested in connection with the charges in the criminal complaint and can therefore no longer evade or avoid arrest and extradition in this matter." 

As CBS News correspondent Jonathan Vigliotti reports, Assange remains holed up in the Ecuadorian Embassy in London in large part out of fear that if he leaves he'll be extradited to the U.S., and this latest revelation could be an indication that his fear is well founded.  

The exact charges Assange faces and when they might be unsealed remained uncertain Friday.

Any charges against him could help illuminate whether Russia coordinated with the Trump campaign to sway the 2016 presidential election. They also would suggest that, after years of internal Justice Department wrangling, prosecutors have decided to take a more aggressive tack against WikiLeaks.

A criminal case also holds the potential to expose the practices of a radical transparency activist who has been under U.S. government scrutiny for years and at the center of some of the most explosive disclosures of stolen information in the last decade. Those include thousands of military and State Department cables from Army Pvt. Bradley (now Chelsea) Manning, secret CIA hacking tools, and most recently and notoriously, Democratic emails that were published in the weeks before the 2016 presidential election and that U.S. intelligence officials say had been hacked by Russia.

Federal special counsel Robert Mueller, who has already charged 12 Russian military intelligence officers with hacking, has been investigating whether any Trump associates had advance knowledge of the stolen emails.

Assange could be an important link for Mueller as he looks to establish exactly how WikiLeaks came to receive the emails, and why its release of the communications -- on the same day a highly damaging video of Mr. Trump from a decade earlier surfaced publicly -- appeared timed to boost his campaign.

Assange, 47, has resided in the Ecuadorian Embassy under a grant of asylum for more than six years to avoid being extradited to Sweden, where he was accused of sex crimes, or to the United States, whose government he has repeatedly humbled with mass disclosures of classified information.