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In a new story from The Spiritual Edge , we meet two Catholic nuns who, after decades of work with immigrant detainees, still aren’t slowing down. Sisters JoAnn Persch and Pat Murphy say their age — one is 85, the other is 90 — is irrelevant when there is so much need. They attend rallies and prayer vigils, meet with immigrants in detention centers — and when they see an opportunity, press for legislation that will bring more humanity to a system where it can be lacking.