The weak link-- she liked the ring of it. To seek the imperfection in the chain that keeps you in bondage. Taken individually, the link was not much. But in concert with its fellows, a mighty iron that subjugated millions despite its weakness. The people she chose, young and old, from the rich part of town or the more modest streets, did not individually persecute Cora. As a community, they were shackles. If she kept at it, chipping away at weak links wherever she found them, it might add up to something.