This Week in Science

In this week's Science, a multi-institute team publishes a study revealing new details about how the DNA-cutting protein used in the genome-editing technology CRISPR/Cas9 effectively ignores off-target sites. Although the protein's specificity was well known, the mechanisms behind its effect were not. The researchers used time-lapsed single-molecule imaging to track Cas9 in vivo, and used the data to calculate the likelihood that Cas9 would remain in one place.

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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.