The financial blockade on WikiLeaks occurred shortly after the organization confidential U.S. diplomatic documents in November of last year.

Assange argues that the current conflict between WikiLeaks and some of the most powerful financial institutions in the world has far-reaching consequences.

"If this financial attack stands unchallenged, a dangerous, oppressive and undemocratic precedent will have been set, the implications of which go far beyond WikiLeaks and its work," he warned. "Any organization that falls foul of these powerful financial companies or their political allies can expect similar extrajudicial action."

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