I believe a few, but not the type that require massive cover-ups. You simply can't keep huge secrets if a large number of people know the secret.
What ones do you believe?ya believe in any ?
I think the Kennedy assassination had more players involved

I still cling to the conspiracy theories behind Flight 800.
I guess it's more of a need for there to be an explanation (or blame) for some tragic events.

ya believe in any ?
I think the Kennedy assassination had more players involved

In general, no. I mean of course I believe there are things the government does that we aren't privy to, but I don't think there are mass conspiracies.