detraction vs hit piece

detraction

noun
  • A derogatory or malicious statement; a disparagement, misrepresentation or slander. 

  • The act of detracting something, or something detracted; taking away; diminution. 

  • The act of revealing previously unknown faults of another person to a third person. 

hit piece

noun
  • A published article or post aiming to sway public opinion by presenting false or biased information in a way that appears objective and truthful. 

How often have the words detraction and hit piece occurred in a corpus of books? (source: Google Ngram Viewer )