There are two videos of the event where Obama made this display of his forefinger. People who have questioned the article's interpretation of the gesture should take a close look at these videos, and listen to them as well. It does not take forensic science to recreate the scenario. It's all there in the videos: Just after Obama walked on stage, an off-camera voice coming from behind him cried, “Allahu Akbar.” This is a Muslim expression meaning “God is the greatest,” a cry that Muhammad, the creator of Islam, made frequent use of to incite people to violence and to...