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

This week: A federal judge told lawyers at Keller Postman and Jenner & Block to resolve their mass arbitration dispute, stating that she was “not a kindergarten teacher.” Bob Clifford, who has sued Boeing over past plane crashes, said lawyers from South Korea have reached out to him about the Dec. 29 disaster that killed 179 people. Girard Sharp’s Daniel Girard has passed the firm's mantle to Dena Sharp.