Syndicated columnist Mark Shields and New York Times columnist David Brooks join Judy Woodruff to discuss the latest news, including public opinion of the nationwide protests over police treatment of black Americans, President Trump’s response and use of force to dispel protesters and the reaction of prominent military leaders to his handling of the situation.
First up this week, Staff Writer Meredith Wadman talks with host Sarah Crespi about how male sex hormones may play a role in higher levels of severe coronavirus infections in men. New support for this idea comes from a study showing high levels of male pattern baldness in hospitalized COVID-19 patients.
Next, Jason Qian, a Ph.D. student in the systems biology department at Harvard Medical School, joins Sarah to talk about an object-tracking system that uses bacterial spores engineered with unique DNA barcodes. The inactivated spores can be sprayed on anything from lettuce, to wood, to sand and later be scraped off and read out using a CRISPR-based detection system. Spraying these DNA-based identifiers on such things as vegetables could help trace foodborne illnesses back to their source. Read a related commentary piece.
As the coronavirus continues to spread around the globe, companies and academic labs are racing to develop a vaccine that would help society get back to normal. But there could also be costs to moving too quickly.
WSJ’s Daniela Hernandez explains. Photo illustration: Laura Kammermann
This week, Nature looks at a new method to grow hairy skin in a dish, and new research takes aim at the RNA world hypothesis.In this episode:
00:45 Hairy Skin
Researchers may have developed a way to make skin that can grow hair in the lab, paving the way for treatment of a variety of skin disorders, and perhaps even baldness. Research Article: Lee et al.; News and Views: Regenerative medicine could pave the way to treating baldness
08:56 Research Highlights
How mercury moved during the ‘Great Dying’, and the link between mobile phones and gender equality. Research Highlight: Giant eruptions belched toxic metal during the ‘Great Dying’; Research Article: Rotondi et al.
11:21 Does DNA predate life?
The RNA world hypothesis posits that RNA formed spontaneously leading eventually to life. Now new research suggests that RNA and DNA formed together, before life. Research Article: Xu et al.; News and Views: How DNA and RNA subunits might have formed to make the first genetic alphabet
19:25 Pick of the Briefing
We pick our highlights from the Nature Briefing, including the recent SpaceX launch, and the earliest fossil of a land animal. CBC: Scientists find oldest fossil of a land animal; Nature News: SpaceX to launch astronauts — and a new era of private human spaceflight
Other links
Video: We test a home antibody kit for tracking Covid-19 transmission
A selection of three essential articles read aloud from the latest issue of The Economist. This week, how the world’s most powerful country is handling covid-19, China’s decision to impose a security law on Hong Kong threatens a broader reckoning (10:04). And why mercenaries are still hired by African governments (18:30).
Syndicated columnist Mark Shields and New York Times columnist David Brooks join Judy Woodruff to discuss the latest political news, including former Vice President Joe Biden’s comments on the death of George Floyd and what action it should prompt, President Trump’s approach toward Twitter and truth and the milestone of 100,000 American deaths from COVID-19.
President Trump’s preferred coronavirus treatment is the focus of a new study suggesting it could cause more harm than good, but not everybody agrees. We discuss the fallout as trials around the world are paused and countries diverge over policy advice.
12:12 Are we rushing science?
Coronavirus papers are being published extremely quickly, while normally healthy scientific debate is being blown up in the world’s press. Is there a balancing act between timely research and accurate messaging?
18:49 One good thing
Our hosts pick out things that have made them smile in the last week, including hedgerow brews and a trip into the past using AI.
Recipe: Elderflower ‘Champagne’
Video: Denis Shiryaev restores historic footage with AI
22:30 The latest coronavirus research papers
Noah Baker takes a look through some of the key coronavirus papers of the last few weeks.
News: Coronavirus research updates
medRxiv: Full genome viral sequences inform patterns of SARS-CoV-2 spread into and within Israel
Harvard Library: Reductions in commuting mobility predict geographic differences in SARS-CoV-2 prevalence in New York City
Science: DNA vaccine protection against SARS-CoV-2 in rhesus macaques
First up this week, Staff Writer Jennifer Couzin-Frankel talks with host Sarah Crespi about a rare inflammatory response in children that has appeared in a number of COVID-19 hot spots. Next, Julian Dowdeswell, director of the Scott Polar Research Institute and professor of physical geography at the University of Cambridge, talks with producer Meagan Cantwell about tracing the retreat of Antarctica’s glaciers by examining the ocean floor. Finally, Kiki Sanford interviews author Danny Dorling about his new book, Slowdown: The End of the Great Acceleration―and Why It’s Good for the Planet, the Economy, and Our Lives.
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