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.