Dr. Martin Luther King, Jr. speaking before some 25,000 Selma-to-Montgomery civil rights marchers outside the Alabama state capitol building on March 25, 1965, in Montgomery.

The one thing about Martin Luther King Jr.'s greatness everyone keeps missing

Updated 5:00 PM ET, Mon January 20, 2020

(CNN)The Rev. Martin Luther King Jr. was barreling toward the climax of his greatest speech when he made a split-second decision that would seal his place in history.

Most people recall what the cameras caught: King declaring "I have a dream!" before 250,000 jubilant supporters at the March on Washington during a muggy, sun-splashed summer day. But there was one crucial exchange that the cameras didn't catch.
King had planned to cap his speech by exhorting