03/18/1963
https://www.presidency.ucsb.edu...
"The fact of the matter is that this testing underground is a very difficult business, very difficult, very expensive, and this will have a restraint on the development of nuclear weapons."
"The problem really goes to the organization of the defense of the West, and what role France sees for herself, and sees for us, and what kind of a cooperative effort France and the United States and B..."
"The problem is really one, as you know, of discrimination, of being able to prevent saturation, of having to protect many targets while the adversary can select a few."
"We want to express a very warm welcome to you."