Facts:   - death place: newport , rhode island    - caption: budenz in 1947    - birth name: louis francis budenz    - death date: 27 april 1972    - spouse: margaret      - birth date: 17 july 1891    - name: louis f. budenz    - image: louis f. budenz -lrb- 1947 -rrb- . png    - birth place: indianapolis , indiana   Based on these bullet points, write a short biography describing the life of louis f. budenz .
Answer:
louis francis budenz -lrb- pronounced `` byew-denz '' ; july 17 , 1891 -- april 27 , 1972 -rrb- was an american activist and writer , as well as a soviet espionage agent and head of the `` buben group '' of spies .he began as a labor activist and became a member of the communist party usa .in 1945 budenz renounced communism and became a vocal anti-communist , appearing as an expert witness at various governmental hearings and authoring a series of books on his experiences .