In the New England Journal of Medicine, researchers from the National Cancer Institute say breast cancer risk assessment models don't perform any better when they include common inherited genetic variants linked to the disease. The study's senior investigator, Sholom Wacholder, says the improvement in the risk models wasn't enough to matter to a majority of women. Wacholder and his team combined data from five studies, altogether including 5,590 breast cancer patients and 5,998 healthy women.

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Researchers find that historical factors influence which genes are the most highly studied, the Atlantic reports.

The US National Science Foundation's new sexual harassment policy is to go into effect next month, according to Nature News.

Researchers report using genotyping to tie together illegal ivory shipments and trace them back to a handful of cartels, the New York Times reports.

In Nature this week: genomic ancestry analysis of Sardinians, current noncoding mutations in colorectal cancer, and more.