Terms like "baby killer" and "murder" are the equivalent of yelling "fire" in a crowded theater. They contribute to an environment where someone like Scott Roeder thinks he's doing God's will by gunning down an innocent man in church.
If you want to understand the back story as Scott Roeder goes to trial in Wichita, Kansas for the murder of Dr. George Tiller, go to James Risen and Judy L. Thomas' book, Wrath of Angels: The American Abortion War.
If the anti-choice movement has its way, the moment one sperm eats its way through an egg's outer shell would be the last moment in human development that wouldn't be covered by the Constitution. Unsurprisingly, it's a rather lucrative racket.
Operation Rescue's Troy Newman may want to officially distance himself and his organization from violence against providers, but he doesn't want to go as far as to stop socially networking with individuals who endorse it.