It's one of those questions that come up every so often. This time The Scientist asks sociologist Dan Clawson, "Is tenure worth saving?" Clawson describes a study of faculty at his school, the University of Massachusetts, Amherst, which showed that the university lost 250 tenure-track faculty members between 1990 and 2005, while maintaining the same number of students over the time frame. "Our university was being transformed before our very eyes in ways that most of us found destructive," Clawson says.

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US Attorney General Jeff Sessions is considering using DNA tests to determine relatedness between adult and child migrants, the Daily Caller reports.

Bloomberg reports that Brainstorm Cell Therapeutics plans to offer a treatment it is developing under the "right to try" law for hundreds of thousands of dollars.

In a proof-of-concept study, researchers report being able to determine age from dried bloodstains, Discover's D-brief blog reports.

In Nature this week: expansion of disease-resistance genes among long-lived oak trees, and more.