In its annual reading of the Declaration of Independence, NPR's "Morning Edition" accidentally omitted two words.

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On Monday, hosts Renee Montagne and Steve Inskeep apologized to Thomas Jefferson, the original colonies and the whole country for leaving out the words, "establish commerce."

"The most impressive part of the episode is that sharp-eared listeners caught this omission fairly deep in our founding document," Montagne said. "If we'd said, 'When in the course of events,' many people would have caught it."

She and Inskeep thought of other well-known documents and what those would look like minus a word or two.