Welcome to Law.com Class Actions: Critical Mass, a weekly briefing for class action and mass tort attorneys.

This week: A federal judge reviewing $150 million in attorney fees in the Juul settlements delved deep into the diversity of the lawyers – or lack thereof. Find out which firms got plaintiffs’ experts thrown out of lawsuits alleging prenatal use of acetaminophen increases risks of ADHD and autism. And what did lawyers have to say about a Dec. 14 hearing on final approval of DuPont’s $1.185 billion PFAS settlement?