It pointed out racial problems in the South but ignored racial injustice in the North.
Explanation:
The statement that does -not- characterize Martin Luther King Jr's "I Have a Dream" speech is "It pointed out racial problems in the South but ignored racial injustice in the North."
This is evident from the actual speech when Luther King Jr., stated that "...Go back to the slums and ghettos of our Northern cities, knowing that somehow this situation can and will be changed. Let us not wallow in the valley of despair..."
Hence, the speech does not ignore the racial injustice in the North.
