High on his own supply

"Simon Heffer ... came to see me about his book on Enoch Powell. At the end I asked, "Did Powell ever talk to you about the death of Mountbatten?"

"Oh yes," he said. "He thought the Americans killed him."

I said, "Powell had told me that but I thought it was so way out, I didn't want to mention it to you."

"Oh yes," Heffer said, "he thinks the Americans killed Airey Neave as well, because they wanted to get a NATO base in Northern Ireland."

[Tony Benn, Free at Last! Diaries 1991-2001, p.370]