Klaatu It was a gift for your President… with it, he could have studied life on other planets. Bobby What d'you think it runs on? Klaatu A highly refined form of atomic power, I imagine. Barnhardt One thing, Mr. Klaatu: suppose this group should reject your proposals. What is the alternative? Klaatu I'm afraid there is no alternative. In such a case, the planet Earth would have to be... eliminated Barnhardt Such power exists? Klaatu I assure you, such power exists.