Mass Tort brief
Preemption Defenses, Rideshare Liability, and New Nuisance Frontiers
Courts test regulatory shields for gig platforms and drugmakers while school districts and AI injury claimants open new tort battlegrounds.
Mass Tort
The First Circuit fortified federal drug preemption — confirming manufacturers cannot face state liability for known risks the FDA already evaluated.
BackgroundFederal preemption bars state failure-to-warn lawsuits when federal drug regulations prevent a manufacturer from independently altering its warning labels. Drugmakers can only change labels without advance agency permission when newly acquired clinical data reveals unexpected adverse health risks.
- The appellate panel found Amgen lacked newly acquired clinical data required to unilaterally revise warnings on ischemic cerebrovascular risks without prior FDA permission.
- Judges determined federal regulators had already analyzed ischemic vascular risks during the initial approval review, making it impossible for Amgen to comply with conflicting state duties.
- The decision strengthens defense playbooks for biologic drugmakers facing state-court product liability claims over known physiological side effects.
Mass Tort
The court's skepticism suggests Lyft cannot hide behind administrative rules — leaving the platform directly exposed to thousands of passenger assault trials.
BackgroundMultidistrict litigation consolidates thousands of passenger lawsuits alleging rideshare companies failed to screen drivers and monitor vehicles adequately. Lyft argues that following California Public Utilities Commission fingerprint rules grants it legal immunity from common-law injury suits.
- U.S. District Judge Rita F. Lin questioned whether state utility reports create an absolute safe harbor, warning that minimum administrative regulations may not bar traditional negligence claims.
- Plaintiffs countered that state administrative rules establish safety floors rather than legal ceilings, preserving corporate duties to protect riders from foreseeable violent crimes.
- The upcoming ruling on the October 14 hearing could clear thousands of pending claims for federal jury trials or dismantle the central legal theory of the multidistrict litigation.
Mass Tort
Uber's serial eleventh-hour settlements keep its financial exposure secret — buying time while roughly 5,000 pending assault claims pile up in court.
BackgroundBellwether trials serve as representative test cases in multidistrict litigation, helping plaintiffs and defendants gauge how juries assign liability and calculate damages. Large corporate defendants frequently resolve strong bellwether cases to prevent public verdicts that could drive settlement expectations sky-high.
- The settled lawsuit alleged Uber onboarded a driver with prior assault charges and an outstanding arrest warrant, who then attacked a passenger during a ride.
- The confidential settlement was struck minutes before jurors entered Judge Charles Breyer's courtroom, extinguishing the first public examination of platform safety practices.
- Resolving bellwethers behind closed doors deprives litigators of open valuation benchmarks, prolonging settlement talks for thousands of claimants awaiting trial dates.
Mass Tort
Judges are deciding whether conversational AI is a product or a service — a ruling that could expose software developers to strict physical liability.
BackgroundProduct liability law holds manufacturers strictly liable for physical injuries caused by defective commercial items sold to the public. Software creators have traditionally avoided strict liability by arguing digital algorithms are expressive services shielded by speech protections rather than physical products.
- Lawsuits coordinated before San Francisco Superior Court Judge Ethan P. Schulman claim algorithmic chatbots are defective commercial products that induce severe mental delusions.
- OpenAI filed dismissal motions in Florida federal court arguing ChatGPT is an interactive computer service, seeking broad immunity under longstanding telecommunications laws.
- A ruling classifying generative AI as a physical product rather than intangible speech would expose AI model builders to strict product liability nationwide.
Mass Tort
Mass Tort
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