Welcome to Critical Mass, Law.com's briefing on class actions and mass torts. I'm Amanda Bronstad in Los Angeles. Here's something Facebook won't “like”: class actions filed over the Cambridge Analytica debacle. Lawyers are calling for a penalty flag to be thrown in the NFL concussion settlement's claims process. And patent infringement suits are popping up before the MDL panel in the wake of the landmark SCOTUS decision in TC Heartland.

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