Welcome to Law.com Class Actions: Critical Mass, a weekly briefing for class action and mass tort attorneys. After two drug companies settled on Tuesday, Walgreens was the only defendant remaining at the close of San Francisco's opioid trial. Plaintiffs' attorneys will appeal a July 7 order tossing out a consolidated class action over security flaws in Intel's microprocessors. Find out who stepped in to represent Safeway, one of several retailers sued over prenatal acetaminophen use.

I'm Amanda Bronstad. Feel free to reach out to me with your input. My email is [email protected], or follow me on Twitter: @abronstadlaw.

Boxes of tablets, produced by Teva Pharmaceutical Industries Ltd., sit on a pharmacy counter in this arranged photograph in London.

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SF's Opioid Trial Wraps Up With Closing Arguments

San Francisco wrapped up its opioid trial on Tuesday with closing arguments before Senior U.S. District Judge Charles Breyer. "Despite all of the finger pointing, just one defendant remains in this case," said Jayne Conroy (Simmons Hanly), "and that defendant, Walgreens, claims it is blameless, that they bear no responsibility, zero for the crisis in this city, and that is just not true."