False Prophets: What Should We Do with Them?

In the November/December 2002 issue of EndTimes Magazine, this man claimed that Saddam Hussein was the AntiChrist, Apollyon (Greek) or Abaddon (Hebrew) in this article.

Here we have the sun being hidden by the smoke, attack helicopters described as locusts coming out of the smoke, and a king over them by the name of the destroyer — and Saddam’s name literally means "the destroyer."

What are the odds that the Bible would call this king by his actual name? At what point can we no longer say, “This is a coincidence?" If we were reading an Iraqi Bible, it would say, "They had a king over them called Saddam."

My point in referencing this man and his teaching is to say:
1. Yes, false prophets exist.
2. What should we do with them in cosideration of this verse?

But the prophet who presumes to speak a word in my name that I have not commanded him to speak, or who speaks in the name of other gods, that same prophet shall die.’ 21 And if you say in your heart, ‘How may we know the word that the Lord has not spoken?’— 22 when a prophet speaks in the name of the Lord, if the word does not come to pass or come true, that is a word that the Lord has not spoken; the prophet has spoken it presumptuously. You need not be afraid of him. (Deuteronomy 18:20-22, ESV)