There is apparently a lot to be learned from the smell of someone's breath, says Brown University grad student Katie Pratt on the Benchfly blog. The volatile organic compounds naturally present in a person's breath — a normal by-product of cellular metabolism — could soon be used to detect whether that person has cancer, Pratt says.

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In a survey, about half of Canadian government scientists say they still feel as though they cannot speak freely, ScienceInsider reports.

The Atlantic reports that biohacker Josiah Zayner regrets injecting himself with the CRISPR gene-editing tool on stage.

Clinicians in China are moving ahead with a number of CRISPR trials, NPR reports, as the US embarks on its first.

In Nature this week: genomic approaches applied to study Neolithic and Bronze Age Europeans, and more.