Over the weekend, the BBC provided more background on this story.

If this excerpt doesn’t get your attention, nothing I can add here will. Go read the whole damned–and damning–thing

Shortly after Nixon took office in 1969, FBI Director J. Edgar Hoover informed him of the existence of the file containing national security wiretaps documenting how Nixon’s emissaries had gone behind President Lyndon Johnson’s back to convince the South Vietnamese government to boycott the Paris Peace Talks, which were close to ending the Vietnam War in fall 1968.In the case of Watergate – the foiled Republican break-in at the Democratic National Committee in June 1972 and Richard Nixon’s botched cover-up leading to his resignation in August 1974 – the evidence is now clear that Nixon created the Watergate burglars out of his panic that the Democrats might possess a file on his sabotage of Vietnam peace talks in 1968.

The disruption of Johnson’s peace talks then enabled Nixon to hang on for a narrow victory over Democrat Hubert Humphrey. However, as the new President was taking steps in 1969 to extend the war another four-plus years, he sensed the threat from the wiretap file and ordered two of his top aides, chief of staff H.R. “Bob” Haldeman and National Security Advisor Henry Kissinger, to locate it. But they couldn’t find the file.

We now know that was because President Johnson, who privately had called Nixon’s Vietnam actions “treason,” had ordered the file removed from the White House by his national security aide Walt Rostow.