The Department of Homeland Security is facing a leadership void. With Secretary Kirstjen Nielsen out, the number of Trump officials serving in an acting capacity grows. What are the consequences of temp help at the top? The United States has designated a branch of Iran's military as a terrorist organization. How's the government in Tehran responding? And thirteen wealthy parents agree to plead guilty in the college admissions scandal. Is there a broader reckoning afoot about class, privilege and who gets into America's elite schools?