George Church

Internal emails disclosed in 2026 showed that the Personal Genome Project had received a biological sample from Jeffrey Epstein in 2013 and that a request for rapid or priority processing had met opposition from team members. According to STAT, staff resisted the idea of special treatment and the project ultimately followed its ordinary procedures.

State of the evidence

Documented

Colossal Biosciences, co-founded by George Church, announced in 2025 that it had 'de-extincted' the dire wolf by genetically modifying grey wolves to reproduce certain traits associated with the extinct species. Several biologists disputed this description, considering that the animals remained essentially genetically modified grey wolves rather than a restoration of the extinct species.

State of the evidence

Documented

Attribution

Close aide

George Church acknowledged having met and spoken with Jeffrey Epstein several times after his 2008 conviction in Florida, in the context of discussions about science and research funding. Following the revelation of these contacts in 2019, Church apologised, explaining that he had displayed 'nerd tunnel vision' by failing to take sufficient account of Epstein's crimes and their victims.

State of the evidence

Established by a court

Attribution

Personally implicated

Church supported a dating app project, often referred to as digiD8, intended to use genetic data to avoid certain couples who might have children affected by serious recessive diseases. Bioethicists and campaigners denounced what they considered a eugenic approach and the possibility of gradually extending screening to non-medical characteristics.

State of the evidence

Documented

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Personally implicated

After He Jiankui announced the birth of genetically modified babies, most scientific leaders strongly condemned the experiment. George Church took a more nuanced position, notably suggesting that some critics were making He a target and that actual risks should be examined rather than condemning all germline modification on principle. This stance led to his being described as one of the few leading scientists defending certain aspects of the initiative.

State of the evidence

Documented

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Directly implicated

During the rise of CRISPR, Church took a different position from scientists calling for a very strict pause on heritable editing of human embryos. He considered that certain germline research could be conducted responsibly and that a general moratorium risked preventing useful research.

State of the evidence

Documented

Attribution

Personally implicated

George Church launched the Personal Genome Project using a radical 'open consent' model: participants accept that their genome, certain medical data and other information may become publicly identifiable, without any genuine guarantee of confidentiality. The model prompted significant debate about volunteers' ability to anticipate future risks to themselves and their relatives.

State of the evidence

Documented

Attribution

Directly implicated