May I Speculate?

One cannot know, but let me just throw a name out there. Just a a name. Richard Clarke.

To that end, the Justice Department has quietly and unofficially begun looking into possible sources for the leak. "We don't think it's someone currently employed by the government or involved in law enforcement or the intelligence community," says another Justice source. "That stuff about 'current and former' sources just doesn't wash. No one currently working on terrorism investigations that use SWIFT data would want to leak this or see it leaked by others. We think we're looking at fairly high-ranking, former officials who want to make life difficult for us and what we do for whatever reasons."

The American Spectator

If it were so, at least we could be assured that he wouldn't be running the NSA under President Hillary.