artbrooks has it basically right. There was no pretext issues and no A-4 ever took off with nukes. They were delayed over an hour as it was.

The Israelis claimed it was a mistake and the US always felt that is was to shut off any leak of intelligence from any source, prior to their preemptive strike against the Egyptians. The History Channel has run the video they produced, several times over the years, though the Dutch version has not, to my knowledge, been run in the States. Perhaps the nuclear allegations are so demonstatively false that no station in the US would run it. However the rest of the truth is, unfortunately, still out there.