Through him, Gauchet met anti-Stalinist left militants, quite different from the communists who dominated the colleges that were training primary school teachers. Gauchet then came into contact with Socialisme ou Barbarie, a radical socialist journal also of an anti-Stalinian ideological orientation. In his first protest, he demonstrated against violent police repression during the Algerian war, in reaction to the so-called Charonne metro station scandal.