neutron bomb vs sabotage

neutron bomb

noun
  • An atomic bomb that produces a greater amount of neutrons, and a lesser amount of blast; the intention being to create equal lethal neutron radiation and blast radii which increases the effectiveness of the weapon against armour while reducing collateral damage. 

sabotage

noun
  • A deliberate action aimed at weakening someone (or something, a nation, etc) or preventing them from being successful, through subversion, obstruction, disruption, and/or destruction. 

verb
  • To deliberately destroy or damage something in order to prevent it from being successful. 

How often have the words neutron bomb and sabotage occurred in a corpus of books? (source: Google Ngram Viewer )