FROM CNN's Jack Cafferty: Despite President Obama's speech last night, the war in Iraq is not over. [cnn-photo-caption image=http://i2.cdn.turner.com/cnn/2010/images/09/01/art.obama.speech.jpg caption=""] In a somber address from the Oval Office, the president thanked the troops and formally ended America's combat role in Iraq after seven years. Mr. Obama said the U.S. "has paid a huge price." And … Continue reading What exactly did U.S. gain by going to war in Iraq?