My husband is a federal investigator. Not a single time have they ever announced who they were investigating. That shit is a secret until that person is arrested.
If you’re dumb enough to think sessions hasn’t already appointed a special counsel to investigate Hillary then I can’t help you. I guarantee it’s already happening. Trump is just baiting us to keep us interested.
Military intelligence / state secrets release and approval by POTUS biggest kept secret so far. This avoids certain agencies to prevent leaks and awareness made to targets. The one area evil could never control was our military which is why owning the Presidency was absolutely critical.