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

This week: A trial in a Tesla shareholder class action against Elon Musk was set to begin today after a contentious jury selection on Tuesday. Lawyers want the Eleventh Circuit to decide: Did 3M’s “epitome of bad faith” warrant sanctions last month in the earplug litigation? Talc claimants with mesothelioma moved to disqualify Kenneth Feinberg from serving as an expert in the bankruptcy case.