JFK Assassination Threat During 1963 Ireland Trip, Months Before Dallas

John F. Kennedy's trip to Ireland in June 1963 was the happiest moment of his presidency, recalled his brother Ted, in an interview for my newly re-issued book, "The Kennedys: America's Emerald Kings." But there's an odd twist to this joyful trip that was a harbinger of the tragedy to come.
Only two years ago, the New York Times carried a story saying the Irish Department of Justice recently had declassified documents that mention three separate threats against President John F. Kennedy during his June 1963 to Ireland. As the Times reported:
The threats against Mr. Kennedy included a warning that a sniper with a rifle would take up position on a rooftop overlooking the president’s route from the Dublin airport to the Irish president’s residence.

This scenario bears an uncanny resemblance to what later happened in Dallas on November 22, 1963, a few months after JFK's trip to Ireland. This Times story tells of the extraordinary security measures taken for JFK's visit to Ireland, which included a trip to the Kennedy Homestead in County Wexford.