It can be said that many Americans did not view President Wilson's goal of establishing an international peacekeeping organization after world War 1 very well, as Wilson was defeated in the election that took place after the war. During the War, the Americans were ready to take all kinds of pain for the country to win the war,
The United Nations waged war against Imperialism and defeated the Axis powers.
♦The answer is "It can conduct diplomacy" I'm pretty sure♦
Because usually the 'bad stuff' is usually quite vague, and since it's a form of the internet, there's not much anybody can do to stop it.