The President's News Conference
11/13/1963
https://www.presidency.ucsb.edu...
We have supported the unification of Europe, economically and politically.
The Nassau agreement was an effort to meet that.
We cannot prove that there is not a missile in a cave or that the Soviet Union isn't going to ship next week.
Cuba did not agree to on-site inspection unless there was inspection of the United States, which we did not agree to.