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

This week: After five juries awarded Roundup plaintiffs more than $2 billion, Monsanto stopped the streak with a defense verdict on Dec. 18 in California. Attorney Andy Birchfield responded to Johnson & Johnson’s move to disqualify him from the talc litigation. Find out who represents Perry Johnson & Associates, and others, in data breach lawsuits.