How should news organizations refer to the armed protesters in Oregon?

When covering the armed protesters in Oregon, news outlets have used a variety of terms: “self-styled militiamen” by Reuters, “armed activists” by The New York Times and “armed protesters” by The Washington Post, while Twitter users posting under the hashtag #OregonUnderAttack seemed to prefer the term “domestic terrorists.” Nearly all major news outlets are avoiding the use of “terrorist” or “terrorism,” because it’s not clear that the group is designed to terrorize anyone. Los Angeles Times assistant managing editor for foreign and national news Kim Murphy says: “We are mainly referring to them as ‘protesters’ or ‘armed men who are occupying the refuge headquarters. This is a dispute that clearly goes to a fundamental public policy debate, and we don’t add any value by attempting to characterize it.”