WikiLeaks co-founder Julian Assange has given his strongest indication yet about the next big leak from his whistleblower organisation. In an interview with the ABC's Foreign Correspondent, Mr Assange said cryptically of WikiLeaks' current project: I can give an analogy. If there had been mass spying that had affected many, many people and organisations and the details of that mass spying were released then that is something that would reveal that the interests of many people had been abused." He agreed it would be of the "calibre" of publishing information about the way the top secret Echelon system - the US-UK electronic spying network which eavesdrops on worldwide communications traffic - had been used. Mr Assange also confirmed that WikiLeaks has a copy of a video showing a US military bombing of a western Afghan township which killed dozens of people, including children. During the course of the past month, Mr Assange has been talking to [ABC's] Foreign Correspondent for [an upcoming] program examining the efficacy of the WikiLeaks model. "What we want to create is a system where there is guaranteed free press across the world, the entire world, that every individual in the world has the ability to publish materials that is meaningful," he said.