Never allow yourself to be programmed.

Once people start realizing that most "conspiracy theories" are true, the government is going to muddy the waters by hiring people that say all the right things so they're "on our side", and then they start adding some new really wacky ideas to attract people to. The result being that our side starts getting filled with people believing a lot of off the wall things.

Every case needs to be judged on its own. It doesn't matter who first said it, or who currently believes it, or whether it appears they're "on our side" or not.