In this essay I explore the way the internet has facilitated people's participation in anti-nuclear activism in Japan. After contextualising the use of the internet in the anti-nuclear movement which developed after the compound disaster of “3/11”, I present a case study focused on the tweet messages of one twitter user. By undertaking content analysis, tracing tweets over time, and tracing the connections between particular vocabulary items, and an interview, we gain a picture of how one participant in the anti-nuclear movement developed a political consciousness through participating in internet-facilitated activism.

In May 2011, just one month after the 3/11 triple-disaster, the Chim↑Pom artist collective conducted an unauthorised installation of a panel depicting the crippled nuclear reactors at the Fukushima Daiichi nuclear power plant next to Okamoto Tarō's large-scale mural Myth of Tomorrow in Shibuya railway station. In this paper I read the installation as a commentary on the history of nuclear power and anti-nuclear art in post-war Japan. This commentary reconnects the historical issue of nuclear weapons with contemporary debates about nuclear power.