In an early public skirmish in what may well become a long battle over ethical questions that are at the core of human biology, medicine, and research, four intellectuals gathered on a stage in New York City last night to debate whether or not there should be a ban on the use of genetic engineering to improve human babies.

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US News & World Report writes that genetic testing of lung tumors can help identify treatments for patients.

A team of researchers plans to sample Loch Ness for environmental DNA, according to Newsweek.

The New York Times writes about the appearance of mosaicism in healthy people.

In PNAS this week: insecticide resistance patterns Anopheles gambiae mosquito, transcriptome patterns in Pseudomonas aeruginosa during infection, and more.