They are covering for the whole institution, because Ginsberg used to leak material and nobody did anything about it, and Thomas would leak material as well. If they came down hard on this leak, they would have to come down on all of them going forward while being hypocritical about the past.
The Marshalls, who did the investigation, did not have the ability to interrogate under oath, and many of the other stuff feds do (looking at who was talking to what reporters, etc., via wiretapping type of methods). Further, there was very little opsec as they were working remotely.
Lastly, under the legal precedent that SCOTUS itself issued when it made its decision on the leaking of the Pentagon Papers during the Vietnam War, it's an open question if a crime was even committed.
These three things combined are why they never found the leaker, and if they had a suspicion over who it was, they didn't arrest them, charge them with 15 different bullshit and tangentially related crimes, and get them to plead to one or cough up who their co-conspirators were.
They are covering for the whole institution, because Ginsberg used to leak material and nobody did anything about it, and Thomas would leak material as well. If they came down hard on this leak, they would have to come down on all of them going forward while being hypocritical about the past.
The Marshalls, who did the investigation, did not have the ability to interrogate under oath, and many of the other stuff feds do (looking at who was talking to what reporters, etc., via wiretapping type of methods). Further, there was very little opsec as they were working remotely.
Lastly, under the legal precedent that SCOTUS itself issued when it made its decision on the leaking of the Pentagon Papers during the Vietnam War, it's an open question if a crime was even committed.
These three things combined are why they never found the leaker, and if they had a suspicion over who it was, they didn't arrest them, charge them with 15 different bullshit and tangentially related crimes, and get them to plead to one or cough up who their co-conspirators were.