This is an edition of The Atlantic Daily, a newsletter that guides you through the biggest stories of the day, helps you discover new ideas, and recommends the best in culture. Sign up for it here. American diplomats are supposed to represent the nation, advocate for the interests and policies of the U.S. government, and stay on generally good terms with the country to which they’re assigned. Even when they are sent to places that have an adversarial relationship with the United States, they are expected to maintain decorum while conveying messages these regimes may not want to hear. Some...