Klaatu succinctly summarizes an answer to this towards the end of the film, when he finally finds the opportunity to implore the human race to strive towards peace: “This doesn't mean it means giving up any freedom, except that of acting irresponsibly." Freedoms should only be considered as such if they do not interfere with the freedoms of others; in this case, the “freedom” to develop atomic weapons seriously violates the right to life of other human beings (and, in the film, aliens). Therefore, peace and security over violence should be obvious