The editor-in-chief of WikiLeaks says it is "a positive sign" that US President Joe Biden is "considering" a request by Australia to drop the prosecution of Julian Assange on espionage charges -- but that more details are needed. "We, of course, discussed it in in the visit this morning, me and Julian Assange, and he agrees it's a positive sign. But we need more information," says Kristinn Hrafnsson outside Belmarsh Prison, where Assange has been imprisoned for five years. IMAGES AND SOUNDBITES