It was created more than 40 years ago and inflamed the land rights debate in Australia. Red Over Black, a book and documentary released in the early 1980s, claimed the movement was a communist plot to erode Australia's sovereignty. Now, the film is being used as a clarion call by anti-Voice to Parliament campaigners in the referendum to be held later this month. ABC Investigations has tracked how the hour-long documentary was repurposed, revealing Australian white supremacists played a major role in its appropriation and dissemination. The documentary has been circulated among groups promoting today's rallies against the Voice around...