I dunno -- certainly there's been PLENTY of anti-abortion violence with clinic bombings and murders of doctors who perform abortions -- but I'm not aware of whether there was violent or threatening reaction in response to the ruling itself in 1973.

Anyway, in the hour or so since I originally posted, two more for the scoreboard, so I'll update my post. The white powder incident is under "intimidation" for now -- if it turns out to be a legitimate dangerous substance, I'll move it into the "violence" column.