Big Tech’s Censors Come for Science

by | May 15, 2021


The free speech controversies roiling Big Tech have now reached the scientific sphere.

In mid-February, the Wall Street Journal published an opinion piece by John Hopkins professor of medicine and public health Martin Makary arguing that a combination of vaccines and natural infections would result in herd immunity in many parts of the United States by the end of April. Facebook quickly flagged the editorial as “misleading” and having “very low overall scientific credibility.”

Whatever one may think of Makary’s claim about herd immunity, he is a distinguished scientist. In addition to authoring over two hundred papers and a New York Times bestselling book, Makary is currently the editor in chief of the leading clinical news site Medpage Today. And his case is no isolated matter.

Over the past few months, Facebook, Google, and Twitter have engaged in multiple acts of censorship against scientists holding a range of views on COVID-19 and the public health response to it. This censorship sets a dangerous precedent — allowing large, unaccountable corporations to set themselves up as arbiters of not only acceptable public speech, but also of what constitutes acceptable science.

The scientists being censored by the world’s largest technology companies aren’t fringe figures. They are leading thinkers employed at prestigious universities — people whose research has been cited tens of thousands of times. Whether or not one agrees with the opinions they express, the history of science teaches us that scientific inquiry requires vigorous debate. Yet in the name of fighting “disinformation,” tech companies have repeatedly muzzled scientific debate and public dialogue in recent months.

In a separate incident, Facebook censored a post linking to a peer-reviewed Lancet article that argued for the airborne transmission of SARS-CoV-2 through aerosols. This viewpoint is in conflict with the official World Health Organization (WHO) explanation which emphasizes transmission through small droplets rather than smaller, aerosolized particles.

Like Makary, the authors of the Lancet article include world-renowned experts on aerosols. Kimberly Prather of the Scripps Institute of Oceanography at UC San Diego is the distinguished chair in atmospheric chemistry and director of the NSF Center for Aerosol Impacts on Chemistry of the Environment, while coauthor Jose-Luis Jimenez is among the most cited aerosol researchers in the world.

Whether one comes down on the side of droplet transmission or aerosolized particle transmission, it is disturbing that Facebook moderators have the power to censor links to a peer-reviewed article in a leading health journal — particularly one with significant public health implications. The article’s authors insist that “reducing airborne transmission of virus requires measures to avoid inhalation of infectious aerosols, including ventilation, air filtration … attention to mask quality and fit, and higher-grade protection for health-care staff and front-line workers.”

Facebooks justifies its behavior as “fact-checking,” but the procedure it uses to vet scientific claims is murky. In Makary’s case the social media company contracted its fact-checking to a newly formed third-party fact site, But how the fact-checkers are chosen is less clear, prompting oncologist and University of California San Francisco professor Vinay Prasad to opine after investigating the matter that Facebook seems to choose its “fact-checkers” based on how many Twitter followers they have.

In another incident of censorship, in March Google-owned YouTube removed the recording of an official public hearing on the pandemic that featured Florida governor Ron DeSantis, Scott Atlas and Jay Bhattacharya of Stanford University, Sunetra Gupta of Oxford University, and Martin Kulldorff of Harvard University. The latter three scientists are originators of the Great Barrington Declaration, a much-debated document arguing against lockdowns and for a strategy of focused protection for the elderly that was adopted in Florida.

YouTube’s explanation for its decision to remove the video was that it “contradicts the consensus of local and global health authorities” in regards to the efficacy of masks among children. To be sure, DeSantis is reviled by progressives, and many scientists and public health experts vehemently oppose the recommendations made in the Great Barrington Declaration. But it’s hard to imagine a more Orwellian justification for censoring a government hearing at which public health policies that would impact millions of people were being discussed.

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