U.S. says Assange could go to Australian prison if convicted

U.S. authorities launched a new battle on Wednesday to make Julian Assange face American justice, telling British judges that if they agree to extradite the WikiLeaks founder on espionage charges, he could serve any U.S. prison sentence he receives in his native Australia.

In January, a lower U.K. court refused a U.S. request to extradite Assange over WikiLeaks' publication of secret American military documents a decade ago. District Judge Vanessa Baraitser ruled that Assange, who has spent years in hiding and in British prisons as he fights extradition, was likely to kill himself if held under harsh U.S. prison conditions.

Appealing against the January decision, an attorney for the U.S. government on Wednesday denied that Assange's mental health was too fragile to withstand the U.S. judicial system. Lawyer James Lewis said Assange "has no history of serious and enduring mental illness" and does not meet the threshold of being so ill that he cannot resist harming himself.

U.S. prosecutors have indicted Assange on 17 espionage charges and one charge of computer misuse over WikiLeaks' publication of thousands of leaked military and diplomatic documents. The charges carry a maximum sentence of 175 years in prison, although Lewis said "the longest sentence ever imposed for this offense is 63 months."

Lewis said American authorities had promised that Assange would not be held before trial in a top-security "Supermax" prison or subjected to strict isolation conditions, and if convicted would be allowed to serve his sentence in Australia. Lewis said the assurances "are binding on the United States."