Welcome to Compliance Hot Spots, our snapshot on white-collar, regulatory and compliance news and trends. In your inbox this week: the Justice Department has freshened up its guidance for prosecutors to evaluate the effectiveness of corporate compliance programs, former prosecutor Andrew Weissmann addresses whether DOJ needs a dedicated compliance expert (again), and King & Spalding tangles with its former client WhatsApp.

Thanks for reading, and we’d love your feedback. Contact C. Ryan Barber in Washington at [email protected] and at 202-828-0315. Follow @cryanbarber.