To mark 60 years since Japan’s second major mercury poisoning outbreak, a group of activists gathered in Tokyo last month to revisit the history of Minamata disease through a medium long used to document it: film.

The symposium held by the Tokyo Association to Indict [Those Responsible for] Minamata Disease on May 31 marked the anniversary of the discovery of Niigata Minamata Disease. The condition came to light nine years after an identical industrial poisoning in Minamata, a city in Kumamoto Prefecture.

The event featured a screening of “Fighting Pollution: Niigata Minamata Disease,” a 1968 documentary produced by Nihon Denpa News, along with a compilation of recent news clips about what activists have called the “2024 mic-off incident.” The term refers to a government meeting in which survivors advocating for expanded compensation were abruptly cut off when their microphones were turned off.