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

This week: A Florida judge declared a mistrial on Tuesday in the first ovarian cancer trial over Johnson & Johnson’s baby powder since its failed bankruptcies. Juries in Arkansas and Pennsylvania sided with Monsanto in Roundup trials, while a Delaware jury ended in a mistrial. Find out who Boeing turned to in a class action over an Alaska Airlines door plug that fell off midflight.