This discussion isn't about generalized terror, it's about a policy of fear directed at people who work for the government. None of the people you listed direct

This discussion isn't about generalized terror, it's about a policy of fear directed at people who work for the government. None of the people you listed directed their campaign of murders towards civil servants. Pol Pot confined his cruelty towards the intelligent, Mugabe, North Korea mostly terrorizes the peasantry, Mugabe's victims were a revolving door of ethnic enemies. It's quite a different thing to shoot an admiral to encourage the rest.