bad news vs reassurance

bad news

noun
  • An irritating, troublesome or harmful person, situation or thing. 

  • News of unpleasant, unfortunate or sad events. 

reassurance

noun
  • The act of confirming someone's opinion or impression. 

  • Reinsurance. 

  • The feeling of being reassured, of having confidence restored, of having apprehensions dispelled. 

How often have the words bad news and reassurance occurred in a corpus of books? (source: Google Ngram Viewer )