red herring
US /ˌred ˈher.ɪŋ/
UK /ˌred ˈher.ɪŋ/

1.
pista falsa, cortina de humo
something, especially a clue, that is or is intended to be misleading or distracting.
:
•
The detective realized the suspicious note was a red herring to throw them off the real trail.
El detective se dio cuenta de que la nota sospechosa era una pista falsa para desviarlos del rastro real.
•
The politician's speech was full of red herrings to distract from the real issues.
El discurso del político estaba lleno de pistas falsas para distraer de los problemas reales.