<span>1. Juan believes that the A. censor's secret command operates all over the world. He believes no one as he thinks that anyone could be a spy sent by the Censors. 2. </span><span>The Censorship Division doesn't bother to check Juan's B. references, as they don't really care after all. 3. One of the workers tries to start a D. strike, as he is unhappy with his job. </span>
I would say understatement, i guess it could be sarcastic, but I've never learned sarcasm as figuritive language, if it was my question I would say understatement.