According to the http://nypost.com/2017/03/04/capitol-hill-staffers-probed-for-theft-worked-for-nyc-congressmen/ the Awans first got involved in the People's business when Imran Awan started accessing the U.S. Congressional information network in 2004.
Since the Pakistanis were bottom feeding from the beginning working with Democrats, one could hardly discount the probability the FBI was bugging most of them anyway. I realize bringing charges against numerous Representatives is not as convenient as say, setting up an ambush on a snowy road but holy moly, we're supposed to believe the FBI hasn't kept notes easily transformable into indictments?
I think your "it’s hardly getting started" would read more credibly as "it will hardly get started."
It was during the GW Bush Administration, AG John Ashcroft, FBI Director Mueller, House Speaker Dennis Hastert that this spy ring was set up.