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

This week: Jenner & Block brought in a former FBI special agent to investigate Keller Postman’s mass arbitration claims against Tubi. A federal judge asked for briefing on whether Tom Girardi, 85, should be in a medical facility, rather than prison. Find out who represents GoodRx and other pharmacy benefit managers in a slate of antitrust class actions against them.