Hmmm. The conventional explanation is that Timothy McVeigh bombed the OKC building because of details of the Waco case that struck him as being abuse. The truth of that abuse does not in any way justify his actions, that is just what we as Americans have been told was his motivation (and his grievance had merit).
If the FBI and Reno lied in the Waco case, what makes you think they didn't put their finger on the scale of justice in this case too?
Some people think that Bill Clinton only ever lied about his affair with Monica Lewinsky. Some of us know better. We may never know every thing that he lied about but we are sure of some of his untruths.
The question comes down to "who do you trust"? I do not doubt Timothy McVeigh's involvement in the bombing. I do not doubt Terry Nichols' involvement. There is evidence to suggest more participants (including a 10 year old plan that target the building).
Also it is certainly odd that some Waco evidence was "lost" as a result of the OKC bombing. If he was outraged about Waco, he certainly forever sealed the door on that investigation. If he was targeting certain federal officials, he botched that too since they were reportedly out of the office that day. Not saying that he had other people in mind but if he wants revenge against unscrupulous people, you'd think that he would keep an eye out for them before striking.
It has to do with reliability of fed agents info to the public and other govt agencies -- can you answer the questions ?