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Green Machines

Nearly 400 retired US military officials signed a letter to Congress asking lawmakers to reconsider plans to prevent the US Navy from conducting research on biofuels or buying alternative fuels that cost more than traditional fuels, reports The Guardian. The proposal was put forth by Congressional Republicans who say that biofuels are too expensive and research into them takes focus away from security needs.

The Navy has shown that it can power jet fighters with a mixture of half conventional fuel and half algae or cooking oil. However, the alternative fuel costs $15 a gallon while the conventional fuel costs $3.60 a gallon.

The retired military officials say that reducing the Department of Defense's, as well as civilians', reliance on fossil fuels is vital to national security. "The Department of Defense should be looking at the widest possible diversity of fuel sources," says John Warner, a former navy secretary and former chair of the Senate armed services committee (R-Va.), to The Guardian. "We should continue to allow the department to move ahead with its innovation."

The Scan

For Better Odds

Bloomberg reports that a child has been born following polygenic risk score screening as an embryo.

Booster Decision Expected

The New York Times reports the US Food and Drug Administration is expected to authorize a booster dose of the Pfizer-BioNTech SARS-CoV-2 vaccine this week for individuals over 65 or at high risk.

Snipping HIV Out

The Philadelphia Inquirer reports Temple University researchers are to test a gene-editing approach for treating HIV.

PLOS Papers on Cancer Risk Scores, Typhoid Fever in Colombia, Streptococcus Protection

In PLOS this week: application of cancer polygenic risk scores across ancestries, genetic diversity of typhoid fever-causing Salmonella, and more.