In days gone by, it was possible to broach such subjects, albeit gently. But in the wake of Russia’s invasion of Ukraine and the Kremlin’s repression of dissent, the space for candid discussion has been sealed off. The Carnegie Moscow Center, for example, where I worked and was able to converse with members of the ruling elite, was shut down by the authorities last spring. The bulk of its scholars have left the country and are now creating another think tank in Berlin. Those who remain in Russia have lost the opportunity to engage in an open dialogue on the...