Margaret McKenna MMS is an American religious sister and anti-militarist activist. Raised in Hackensack, New Jersey, she earned her PhD in the origins and religious thought of Christianity from the University of Pennsylvania. In the 1970s, McKenna began participating in non-violent civil disobedience with the Plowshares Movement, sometimes being arrested or imprisoned for her actions. Her activism has continued through recent years.
In 1989, McKenna helped to found New Jerusalem Laura, a North Philadelphia addiction treatment center that strives to help people recover from substance abuse without the use of medication,[1] by substituting community service, discussion, and Bible study as routes to recovery.