théorie du complot

CONT: La Terre est plate. Les vaccins causent l'autisme. [...] Plusieurs théories du complot circulent ces temps-ci [...]
CONT: [Une] politologue [...] croit que les théories du complot offrent des explications simples à des phénomènes complexes.

CONT: The more you see the world [as] full of malice and planning instead of circumstance and coincidence, the more likely you are to accept conspiracy theories of all kinds. Once you buy into the first theory, with its premises of coordination, efficacy, and secrecy, the next seems that much more plausible.