Not even in the dark days of the SDS and Black Panthers were elected officials at risk as they are today.
wrong url posted earlier - link here -
28 Sept: Boston Globe: Flake’s planned talk in Boston moved amid safety concerns
https://www.bostonglobe.com/metro/2018/09/28/sen-jeff-flake-scheduled-talk-politics-boston-monday-following-explosive-kavanaugh-hearings/5orrupsjMLlUk8L5L9a8lM/story.html