The Amish interact with those of us who are the "English," but they are also a closed community. Few develop close relationships with someone who is not Amish. I do, however, know a few ex-Amish.
So when something about the Amish appears in the news it tends to gets my attention. Recently there has been a string of attacks on Amish men and women by a group known as the Bergholz Clan. This Clan barges into the homes of other Amish that they consider to be weak in faith. They hold down the individual and proceed to cut off their beard and hair. This is intended to be an act that causes shame since Amish men do not shave once they have been married. Below is a video clip of the story that takes place in Holmes County, which is about 50 miles from me. I have tried to embed it. If it doesn't work you can read the story and see the video here.
I suppose there are fundamentalists in every group.