hit piece vs mendacity

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. 

mendacity

noun
  • A deceit, falsehood, or lie. 

  • The fact or condition of being untruthful; dishonesty. 

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