Hilzoy has some stuff on Operation Rescue, the pro-life group that may be wrapped up in the terrorist murder of Dr. George Tiller. And yes this could be classified as "terrorism" (heinous violence to create a desired political effect). Bad Religion actually had a song called Operation Rescue from their legendary 1990 album "Against the Grain" that has some bizarre symbolism today:
life ever-after is what they're in business for,Creepy!
see them brandish the key to their kingdoms door,
it's persuasive, it's a part of you and me
but it's not overwhelming as they wish it to be,
if no one believed in fairy tales
there would be nothing they could do but
yet everywhere we look someone is trying to reassure our
as a people,
operation rescue . . .
you may wonder where they come from,
but I just wonder what compels them all.
More:Dondero and TAH point out that opportunistic bloggers are saying this act is typical of the right-wing. Pretty low class.