Third, I ask for the authority to recruit and train skilled volunteers for the war against poverty. Thousands of Americans have volunteered to serve … - Lyndon B. Johnson

First, we have worked to avoid war by accident or miscalculation. I believe the American people should know the steps that we have taken to eliminate the danger of accidental attack by our strategic forces, and I am going to talk about that tonight. The release of nuclear weapons would come by Presidential decision alone. Complex codes and electronic devices prevent any unauthorized action. Every further step along the way--from decision to destruction--is governed by the two-man rule. Two or more men must act independently and must decide the order has been given. They must independently take action. An elaborate system of checks and counter-checks, procedural and mechanical, guard against any unauthorized nuclear bursts. In addition, since 1961 we have placed permissive action links on several of our weapons. These are electromechanical locks which must be opened by secret combination before any action at all is possible, and we are extending this system. The American people and all the world can rest assured that we have taken every step that man can devise to insure that neither a madman nor a malfunction could ever trigger nuclear war.

What we won when all of our people united just must not now be lost in suspicion, distrust, selfishness, and politics among any of our people. Believing this as I do, I have concluded that I should not permit the Presidency to become involved in the partisan divisions that are developing in this political year. With America's sons in the fields far away, with America's future under challenge right here at home, with our hopes and the world's hopes for peace in the balance every day, I do not believe that I should devote an hour or a day of my time to any personal partisan causes or to any duties other than the awesome duties of this office — the Presidency of your country. Accordingly, I shall not seek, and I will not accept, the nomination of my party for another term as your President.

We have also worked to avoid war by miscalculation. There may be little time for decision between our first warning and our need to reply. If our weapons could be easily destroyed, we would have to make the final decision in a matter of minutes. By protecting our power against surprise attack, we give ourselves more time to confirm that war has actually begun. Thus, we have placed missiles in protected, underground sites. We have placed missiles beneath the seas. And we have provided constant and secure communication between strategic forces and the Commander in Chief, the President of the United States.