But what about when pro-life activists are the victims of violence?
Some pro-life activists went into stores and destroyed copies of the books in an attempt to halt sales.
Also, it features the quote, "A person's a person, no matter how small," commonly used by pro-life activists.
Abortion clinics have frequently been the site of protests by pro-life activists.
Although the company has never taken a position between "pro-choice" and "pro-life" activists, we have had to endure attacks from both groups.
Since retiring Bavaro has done work as a pro-life activist.
In this period Law was also a pro-life activist and spoke out against abortion.
Official statistics put the number at 989,000 in 2011, though Russian pro-life activists say that number is much higher.
A doctor at a local abortion clinic was shot in the back by a pro-life activist.
Tiller was killed in 2009 by a pro-life activist.