Did al-Qaeda Succeed?

Since September 11, 2001, al‑Qaeda has pulled off exactly one fatal attack inside the United States. If you remember the details of that attack, you probably spend too much time thinking about terrorism. On December 6, 2019, in Pensacola, Florida, a 21-year-old Royal Saudi Air Force officer took out a legally acquired Glock pistol and killed three U.S. sailors at a naval air base, before police arrived and killed him. The shooter, an affiliate of al‑Qaeda’s branch in Yemen, had been on the base…