This Week in Cell

Investigators at the Hospital for Sick Children, University of Toronto, University of Utah, and elsewhere explore mechanisms for medulloblastoma metastases to leptomeningeal tissue surrounding the brain and spinal cord. The team did whole-genome sequencing on primary medulloblastoma samples, peripheral blood samples, and matched leptomeningeal metastases from three individuals with the disease, a childhood cancer that begins in the brain's developing cerebellum.

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Lawmakers have asked four direct-to-consumer genetic testing companies to explain their privacy policies and security measures, according to Stat News.

The Trump Administration has proposed a plan to reorganize the federal government, the Washington Post reports.

In Science this week: genetic overlap among many psychiatric disorders, and more.

The Economist writes that an increasing number of scientific journals don't do peer review.