theSIGNAL SCIENCE
29 July 2026
"Science is the belief in the ignorance of experts."
Science

155 Scientists Rally Behind a Besieged Fauci

More than 155 scientists have signed an open letter defending Anthony Fauci as he faces a compelled Senate hearing over Covid-19 origins.

Imagine spending 38 years guiding a nation through HIV, Ebola, SARS, and Covid-19 — and then being summoned to testify under subpoena at the age of 85. That is exactly where Anthony Fauci, the former director of the National Institute of Allergy and Infectious Diseases, finds himself this week. The Republican-controlled Senate Homeland Security and Governmental Affairs Committee, chaired by Senator Rand Paul of Kentucky, has compelled him to appear as part of its investigation into the origins of Covid-19 and whether federal officials deliberately misled Congress and the public. One day before that hearing, a coalition of more than 155 scientists, physicians, and public health advocates published a striking open letter.

They did not mince words. The charges against Fauci — that he covered up the pandemic's origins, bribed fellow scientists, held personal patents on the virus, and conspired with intelligence agencies — were described in the letter as "baseless" and "absurd." No credible evidence, the signatories argued, has ever been produced to support any of them. The group also accused the Trump administration and its congressional allies of waging what they called "a war on individual scientists," using public harassment, arrests, and criminal threats as weapons.

What makes this story stranger than it might first appear is the scale of the personal cost. The letter notes that Fauci and his family have endured five years of harassment and threats of violence — not as a consequence of any proven wrongdoing, but because of allegations that have never been substantiated. Scientists in Brazil, Germany, and across the world are watching a country that once exported scientific credibility now appear to consume it from within.

Photo: Gerda / Unsplash
Anthony Fauci arrives on Capitol Hill ahead of his compelled Senate testimony on Covid-19 origins.
Discuss
  • Why might 155 scientists feel compelled to defend a colleague publicly rather than privately?
  • Is it ever legitimate for a government to subpoena a scientist to testify before a political committee?
  • What are the possible consequences when scientists fear harassment for publishing research?
Science

Free-Range Eggs Hide a Dirty Secret

Here is a genuinely uncomfortable number: switching the entire UK egg industry to free-range and organic production would raise greenhouse gas emissions by 60% and nearly double the land required. That finding, published in *Royal Society Open Science* by Oxford's Dr. Harriet Bartlett and Croatia-based researcher Oliver Martinic, is not an argument for keeping hens in cages. It is something trickier. Cage-free systems need larger hen populations, which pushes environmental costs upward. Global egg production has already quadrupled in fifty years, making it a significant driver of emissions, water pollution, and soil damage worldwide. So which matters more — the welfare of the hen, or the health of the planet?…
  • Should consumers pay higher prices to balance egg welfare and environmental costs?
No credible evidence has been produced to support these absurd charges.
Open letter signed by 155 scientists and public health advocates
Science

Mosquitoes Are Learning to Beat Insecticides

In a Delhi laboratory, researchers watched a troubling number appear: 97.91%. That is how many Aedes aegypti mosquitoes died when exposed to a standard dose of α-cypermethrin — but that slim surviving fraction is exactly what worries scientists. When the insecticide enters a mosquito's body, a cellular alarm fires and production of defensive proteins surges. One enzyme, β-esterase, increased its activity more than 21-fold, essentially dismantling the chemical before it could kill. Mosquitoes have been outsmarting humanity's best sprays on every continent.…
  • If mosquitoes keep evolving resistance, what alternatives could replace chemical insecticides?
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theSIGNAL IN THE LAB
1VOCABULARY
did not mince wordsbaseless
substantiatedcredibilitysurges
compelledsignatories
2GRAMMAR FOCUS
Participle clauses — present (-ing) and past (-ed)
Participle clauses use a present participle (-ing) to show an active or simultaneous action, and a past participle (-ed) to show a passive or completed action; both replace longer relative or adverbial clauses.
chaired · using · published · watching · compelled · exposed · arguing
  1. The Senate committee, by Senator Rand Paul, has summoned Fauci to testify at the age of 85.
  2. The coalition released an open letter, that every charge against Fauci was baseless and absurd.
  3. Scientists around the world are a country that once exported scientific credibility appear to consume it from within.
  4. to appear before Congress, Fauci will face questions about the origins of Covid-19.
  5. The study, in Royal Society Open Science, found that free-range egg production would raise emissions by 60%.
  6. Mosquitoes to a standard dose of α-cypermethrin produced defensive enzymes at dramatically higher levels.
3PHRASAL VERBS
Match the phrasal verb (1–6) to its correct definition (A–F). All six appear in today's articles.
  1. 1. mince words
  2. 2. rally behind
  3. 3. stay ahead of
  4. 4. push upward
  5. 5. consume from within
4CRITICAL THINKING
The egg study presents a direct conflict between two progressive values — animal welfare and environmental sustainability — with no clear winner. When two causes that are usually allied point in opposite directions, how should scientists, policymakers, and activists decide which to prioritise, and who should have the final say?
5CREATIVE · HEADLINES
Write a headline for the Fauci story in each of the following styles. One line each, no explanation:
  • TABLOID NEWSPAPER
  • LUXURY MAGAZINE
  • ACTIVIST BLOG
6WRITING
The three stories in today's edition all involve a gap between what the public believes and what the evidence actually shows — on Fauci's conduct, on free-range eggs, and on insecticide resistance. Choose one of these gaps and write a short paragraph arguing whose responsibility it is to close it: scientists, journalists, governments, or the public itself.
7DEGREES OF EXTREMITY
Complete each ladder from mild to strong.
  • questioned
  • claim
  • unlikely
  • concern
  • uncomfortable
  • rose
8SPEAKING
  1. Can personal attacks on scientists influence which research gets funded?
  2. Should environmental cost override animal welfare in food policy?
  3. Which article's finding surprised you most, and why?
  4. Does media coverage of science make the public better or worse informed?