This Week in Science

In Science this week, investigators from Harvard University, the Dana-Farber Cancer Institute, and the Massachusetts Institute of Technology describe a method of crafting single-stranded DNA into a variety of different three-dimensional forms. Called "DNA bricks," 102 of these self-assembling structures were created from single strands of 32 nucleotide-long DNA. With intricate cavities and hollow interiors, the bricks can bind with up to four neighboring strands and be added or removed independently.

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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.

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

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