A recent case in Europe has reignited debate over the regulation of sperm donation after a man unknowingly carrying a rare, cancer-causing genetic mutation fathered at least 67 children across eight countries. Ten of these children have been diagnosed with cancer, including leukemia, brain tumors and lymphomas. The case demonstrates how advances in reproductive medicine can outpace regulatory safeguards. It highlights the urgent need for robust genetic screening and thoughtful policy in reproductive medicine—a theme explored in greater depth in the new book, Destiny's Child No Longer: Rewriting the Genetic Future .

The donor’s sperm carried a mutation that causes Li-Fraumeni syndrome or LFS, one of the most severe inherited cancer predisposition syndromes. Individuals with the synd

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