The Day The Earth Stood Still

In this movie, an alien names Klatu comes to earth bearing a message that we need to stop the development of nuclear weapons because it will lead to inter galactic space travel and that puts Klatu's planet in danger. When Klatu comes to earth he is seemingly friendly until he pulls out a mysterious object and one of the front line soldiers acted out of fear and ignorance, leading him to shoot Klatu. Throught this entire movie, Klatu is faced with many oppertunities like this to become violent and retaliate with violence but he truely shows his compassion to the earth people. However he does have one demand and it seems like he will do anything to get it. He wants to warn people to stop nuclear weapon development, he never tries to obtain this through violence, instead he simply goes to a scientist and asks him to call a meeting of the most intellegent people he knows. Where this gets contraversial is during his speach he poses an untimatium to the people saying "I'm afraid there is no alternative. In such a case [where you do not stop nuclear progression], the planet Earth would have to be... eliminated." This is a threat to everyone. People were already paranoid about this new "space man" and their paranoia was led by ignorance, no one new Klatu and so they immediatly came to the mindset that he was bad. I think that Klatu was justified with his demands because this is an immediate danger and anyone who denies this, I want to know your reasoning. This is exactly what we did with Iraq, we thought that they had weapons of mass destruction so we infultrated their country looking for these weapons, and even though we havent found any, were still there.