Conspiracy theories galore, I suspect. The wolly fringes did not trust the Clinton administration, especially not the hard right, and catching someone 'associated with' the militia movement 'in possession of' bombmaking materials and 'intending to' blow up a federal building will be read as creating a scapegoat easily. McVeigh will go to prison and get lots and lots of fan mail. Quite possibly, increased security measures and intrusive laws will need to wait a bit longer because of greater resistance, though it's easily possible someone else will blow up a federal institution somewhere around that time.