This Week in PNAS

In a paper published online in advance in PNAS this week, researchers in Italy and Austria show that "transgene-mediated cosuppression and RNA interference enhance germ-line apoptosis in Caenorhabditis elegans," and hypothesize that the mechanism through which it occurs "may trigger the elimination of germ cells that have undergone viral infection or transposon activation."

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At Stat News, Jim Kozubek argues that the Broad Institute is pushing the boundary of what a nonprofit is.

In PNAS this week: gut microbes may affect honeybee weight, phenotype and gene expression changes in DiGeorge syndrome, and more.

Vivek Murthy is no longer the surgeon general of the US, the Associated Press reports.

People around the globe took to the streets to support science — some with signs.