“A defective update to an obscure piece of security software knocked out security systems around the globe Friday, causing widespread disruptions to travel, medical care and businesses of all stripes while revealing in stunning fashion the fragility of a world economy on shared technology.”

That lead sentence from a Washington Post story summarizes the danger we face from potential and actual enemies. If an unintended software glitch can produce such havoc, how much more damage, danger and destruction could totalitarian states like Iran, North Korea, Russia and China do should they choose to do so?

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Readers may email Cal Thomas at tcaeditors@tribpub.com. Look for Cal Thomas’ new book “America’s Expiration Date: The Fall of Empires and Superpowers and the Future of the United States” (HarperCollins/Zondervan).

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