Well we know critical evidence (the steel front door) is still 'missing'.
We know Chuck Schumer held up a pristine AK-47 in the hearings and claimed the Davidians had all 'machine guns' (the gun parts recovered from the ashes were reassembled by the BATF armorers into machine guns. Whether they were or not before didn't seem to be important).
We know the Davidians knew the raid was coming. (News crew asked the postman how to get there, the postman was a Davidian, and let them know).
We know the phones were tapped. So the Feds knew the raid was 'blown' and went ahead, anyway.
We know there was a lot of bullshit in the media.
4 former Clinton bodyguards were killed.
(Each allegedly had the same behind the ear head wound).
The carrier liquid for the CS powder injected by the Combat Engineer Vehicles was Methylene Chloride. (Active ingredient in many carburetor cleaners) and flammable.