Is President Obama a Muslim? A lot has been written about this, but if photographs speak louder than words, then a photo taken at last August’s U.S.-African Leaders’ Summit in Washington D.C. might shed considerable light. It shows Barack Hussein Obama flashing the one-finger affirmation of Islamic faith to dozens of African delegates. The Associated Press took this astonishing photo as the African dignitaries joined Obama, who hosted the event, in a State Department auditorium for a group photograph. It was published in an article in Britain’s Daily Mail, and it was the only use ever of the photo. The...