defector – n. person who abandons their country for another one
verification – n. the process of establishing whether something is true or not
humble – adj. not proud; not thinking of yourself as better than others
atrocity – n. a very cruel or terrible act
extermination – n. to completely destroy or kill
hierarchy – n. a system that places people or things in difference levels and importance
prosecution – n. the act of holding a trial against a person accused of a crime to establish guilt or innocence