The linked story is "White House told of militant claim two hours after Libya attack: emails."
The famous question from Watergate was "What did the President know and when did he know it?"
In 1973 and 1974 [Howard] Baker was... the influential ranking minority member of the Senate committee... that investigated the Watergate scandal. He is famous for having asked aloud, "What did the President know and when did he know it?", a question given him to ask by his counsel and former campaign manager, future U.S. Senator Fred Thompson.