In 1977 Sartre, Foucault, Guattari, Deleuze, Barthes, and others wrote an open letter protesting about the imprisonment and investigation of a number of Italian intellectuals, including ‘Bifo’ (Franco Berardi) and Antonio Negri. I’d not seen this before and it is the first (but I’m sure not the last) thing missing from my bibliography of ‘The Uncollected Foucault‘ which recently appeared in Foucault Studies.
An English version appeared in Italy, 1977-8: ‘Living with an Earthquake’, a pamphlet published by Red Notes in 1978. Few libraries have a copy and second-hand versions sell for obscene amounts. The inside front-cover of the pamphlet says that “This pamphlet or any part of it may be freely reproduced by any tendency in the revolutionary movement. Copyright protects it from being poached by capitalists”. I’ve uploaded a scan of the two pages here.
Thanks to Marcelo Hoffman to alerting me to this. Several more pieces are available to download here.