Mary Gray, a statistician and social-justice campaigner, has been using her skills to fight human-rights abuses, according to Nature. She has been working in this field for some time, having previously exposed gender discrimination in US academics' retirement benefits approximately 50 years ago. This experience has likely informed her current work as a statistician and campaigner.
Gray's work as a statistician and social-justice campaigner is significant, as it highlights the importance of using data and statistical analysis to identify and address human-rights issues. According to Nature, Gray's story is a notable example of how individuals can use their skills to make a positive impact. However, limited information is available on her current projects and specific accomplishments.
The context of Gray's work is not fully detailed in the available sources, but it is likely that her efforts are part of a broader movement to address human-rights abuses and promote social justice. The fact that Nature is highlighting her story suggests that her work is noteworthy and deserving of attention.