After Ben-Gurion resigned in Israel, Kennedy wrote a detailed letter to his successor Levi Eshkol on the subject.
In a letter whose confidentiality decision was lifted by the U.S. National Archives a few years ago, it was clearly stated that any wrong move by Israel would strain bilateral relations.
Five months after writing this letter, Kennedy was assassinated.
Documents revealed the confession of former Israeli Air Force Commander Dan Tolkowsky about that tense period.