> many logical fallacies are intentional.

Of course they are, Joe. It's all about the "art of persuasion."

As a prominent attorney once told me, "A trial isn't about justice. It's about resolving a dispute according to law. Any justice is a welcome by-product."

What he meant was that both sides do everything they can - deceptive or not - to persuade the jury. Then the jury ponders the evidence according to their own abilities.

Consider the OJ trial. Or Casey Anthony.

And consider objectively any statement by your favorite politician, who has to persuade the crowd in order to get elected.