Julian Assange holds a press conference at Ecuador's embassy in London

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Wikileaks founder Julian Assange has urged U.S. President Barack Obama to end what he called a "witch-hunt" against his whistleblowing website.Assange broke his silence with a dramatic speech from the balcony of the Ecuadorean embassy in London, where he has been holed up for two months.Al Jazeera's Emma Hayward reports.

Julian Assange holds a press conference at Ecuador's embassy in London official