In a Wall Street Journal article today, columnist Sharon Begley introduces readers to the concept of biomarker tests. The hope and hype are both familiar to the scientific community but, until recently, have remained under the radar of the general public.

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Direct-to-consumer genetic testing companies have offered to test families separated at the southern US border, but that raises ethical issues.

CNBC reports that confirming a positive result from 23andMe's BRCA health report can be expensive.

The New York Times reports on a project to develop a tree DNA database to uncover illegal logging.

In PLOS this week: links between gut microbiome and colorectal cancer mutations, targeted sequencing uncovers genetic susceptibilities to epilepsy in Koreans, and more.