It must be bad plaintiff lawyer week here at the Drug and Device Law Blog. Yesterday, we brought you a review of The Pain Brokers (One Signal Publishers 2026) and the sordid tale of ginned-up damages in the vaginal mesh litigation.
Today we bring you The American Tort Reform Association’s 2026 report, The Junk Science Playbook: Exposing Mass Tort Litigation Tactics and its explanation about how mass tort plaintiffs’ lawyers do not simply “find” science; in many instances, they help manufacture it out of whole cloth.
ATRA’s Report maps out a coordinated ecosystem that produces, launders, and weaponizes questionable scientific claims to drive mass torts and regulatory pressure. That ecosystem includes those who create junk science (“merchants”) and those who launder and amplify it (“purveyors”). The Report also points toward solutions—most notably, rigorous Rule 702 gatekeeping—to keep junk science out of court.
Those who don’t have to wade through our neck of the litigation swamp everyday just do not appreciate how bad things are, but this Report has some of the receipts.
The Merchants.
The report identifies “quasi‑academic” organizations whose classifications and studies repeatedly become centerpieces of mass tort advertising and expert reports, yet are regularly at odds with mainstream regulators. Like the IARC, which only found one agent “probably not” carcinogenic out of nearly 1,000 examined, and which relies on working‑group members who not infrequently have conflicts of interest (like advisory ties with advocacy groups opposed to targeted chemicals).
Then there are litigation‑aligned testing laboratories like Valisure, which Blog readers know is key to generating what the Report (understandably) labels “faux causation” data in litigations ranging from sunscreen to acetaminophen. Or Emery Pharma, which markets its ability to design studies for product‑liability cases and then also supply the testifying plaintiff-side experts.
And of course we have the agenda‑driven nonprofits dedicated to producing and promoting litigation‑friendly science, often funded by money from the plaintiffs’ bar that their work supports.
The Purveyors.
Once the litigation‑driven “science” exists, there is a laundering pipeline to burnish it and clothe it with apparent legitimacy.
To begin with, there is the scientific publishing industry, which is suffering an integrity crisis. Recent years have shown a massive spike in retractions (over 10,000 papers in 2023 alone) and what the Report calls (again, with justification) the “predatory” open‑access journals that have impressive titles, but are pay-to-publish and without meaningful peer review.
Next, nothing catches eyeballs or clicks like a good scary story, so after “scientific” journal publication, advocacy groups and their PR teams go into overdrive to convert niche papers and negligible results into mainstream health scares, with sometimes disappointingly credulous coverage by major news outlets.
As the media let loose, so does the lawyer advertising and the mass tort litigation. So the “final step” in the playbook is the conversion of questionable research into courtroom testimony by frequent-flier plaintiffs’ experts. These experts often may disregard contrary, mainstream science; manipulate or cherry-pick their data, and obscure their financial ties or litigation roles. Seriously, some of these plaintiffs’ experts receive millions in fees.
Public Health.
We complain about the “litigation industry” regularly on this Blog, and litigation abuses are a problem in their own right. But what really gets us is when those abuses spill over into hurting people, like the vaginal mesh plaintiffs misled into explant surgeries they didn’t need and their own doctors did not recommend.
The ATRA report identifies another space where litigation incentives are reshaping “science” in a way that will hurt people: Vaccines.
The plaintiffs’ bar generally does not like the National Vaccine Injury Compensation Program (VICP), a no‑fault program funded by an excise tax on vaccines) that has paid more than $5.5 billion in compensation since 1986. The VICP requires most vaccine‑injury claims to be brought administratively rather than via tort suits.
Plaintiffs’ lawyers do not rake in as much dough under the VICP as they do through the usual mass torts, so the Report identifies efforts to destabilize the program. One such effort is by aggressively pushing to add autism as a compensable condition without scientific support, or stripping vaccines from the program in a way that could either bankrupt the fund or route claims back to the tort system, where plaintiffs’ lawyers stand to collect substantial contingency fees. Another is by pressing for state‑law private rights of action for vaccine side effects (e.g., Texas’ 2025 law, with copycat bills in other states), which the advocates hope will punch holes in the federal preemption that applies to vaccines.
Anything that uses bad science to mislead the public about vaccines will, inevitably, lead to more illnesses and more deaths from preventable diseases.
Solutions.
The ATRA Report closes with a suite of recommended reforms, most prominently that vigorous judicial gatekeeping based on Federal Rule of Evidence 702 (and state law equivalents) should be used to keep junk science out of the courtroom. The 2023 Rule 702 amendments and post-amendment case law emphasize that:
- The proponent bears the burden of proving admissibility by a preponderance of the evidence; there is no presumption of admission.
- Courts must scrutinize not only an expert’s methodology and data, but also whether each opinion stays within the bounds of what that methodology can reliably support.
- Reliability in both theory and application is the “hallmark” of admissible expert testimony.
- Courts must probe more deeply than before; many prior decisions misapplied Rule 702 by re‑labeling reliability as going to “weight” rather than admissibility.
- Red flags include causation theories that have not been independently validated in peer‑reviewed literature outside of litigation.
The Report also urges more courts not to take either side’s word for it and instead obtain their own, mainstream, credible, insight into the science by using Rule 706 to appoint neutral experts or technical advisors, or convening “science days” in complex MDLs, and requiring disclosure of litigation funding and lawyer involvement for studies cited in expert reports or regulatory proceedings.
Finally, the Report urges defendants to actively counter junk science rather than merely defend individual cases through aggressive discovery into communications and funding records to expose lawyer‑driven study designs or incomplete disclosures or—again, from yesterday’s post—outright illegal and nefarious schemes.