In response to a question about persistent rumours in the Middle East that Israel was involved in the 9/11 attacks, Zawahiri said the rumour had begun on the Hezbollah television station, Al-Manar.Settle down now, Ayman... we all know you're a bloodthirsty savage.
"The purpose of this lie is clear - to suggest that there are no heroes among the Sunnis who can hurt America as no-one else did in history," he said.
"Iranian media snapped up this lie and repeated it."
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