The Oklahoma City bombing was all about destroying evidence.  All of the FBI records and evidence gathered over the previous decade regarding Bill & Hillary Clinton and their criminal activity while in Arkansas was stored in that building. All of the medical records of military personnel who went to Iraq during the first gulf war and came home with mysterious new diseases caused by the untested vaccine they were given prior to deployment were gathered in the same building. During the Iran/Iraq war in the 80s, back when Saddam was still a puppet ally, the US/C_A secretly gave Iraq cluster bombs and a new strain of anthrax that was easily weaponized. The C_A knew that Iraq's ground troops were out-numbered 10:1. So they gave the bombs and the anthrax to Iraq to use as a last resort if they were about to be over-run. The new strain of anthrax had been developed in secret C_A/Big Pharma labs without notifying the FDA or Congress. It was so new that they still hadn't developed a vaccine for it.  During the run-up to the first Gulf War, the C_A recognized the potential danger. Cluster bombs weren't a big concern because they knew that we could shut down Iraq's Air Force on day-1. On the other hand, the anthrax was a major concern. The C_A rushed to develop a vaccine in the same secret labs with notifying anyone. Normally vaccines of that type are given once a month over a 6 month period, but they didn't have time for that. Instead, they put a new chemical agent in the vaccine to speed up the process. All military personnel were given that vaccine prior to arriving in theater. After the fact, military personnel began to get very ill. New diseases and new forms of cancer were showing up Gulf War vets. Doctors couldn't explain it. The problem was showing up in vets, but not in the Iraqi soldiers or civilians. One thing the vets had in common was the chemical agent used in the vaccine was showing up in their blood tests.  Congress began an investigation and eventually asked the FBI to gather all of the medical records of any vet that was in the first Gulf War, and put them in one location so doctors and medical experts could analyze all the records and figure what was going on. The cancers that were found in the vets tended to migrate to the reproductive organs and was being passed on to spouses and children. The C_A knew that if those records were allowed to be examined and congress figured out what really happened, the US government would be held liable for damages, possibly for a few generations.  The C_A/DS couldn't allow that to happen, so they blew the place up. Destruction of evidence and records was also one of the reasons behind 9/11. If you want to learn more about it do a YouTube search for Cody Snodgres. He's a former C_A contractor who was offered the contract for the OK City bombing, but turned it down. This video also includes information and insights into Waco.