19. Bernard Nathanson (also known as an anti-abortion activist)

Bernard Nathanson was an American physician and a prominent activist against abortion. Initially a co-founder of NARAL (National Abortion Rights Action League), he performed thousands of abortions before undergoing a personal transformation. He later became a strong anti-abortion advocate, arguing against the practice based on his experiences and what he believed were ethical implications. Nathanson also produced influential documentaries, like "The Silent Scream," to illustrate his views on fetal development and advocate for the pro-life movement. His journey highlights the complexity of the abortion debate, marked by shifts in personal belief and public advocacy.