Apparently the fellows in al Qaeda took as a personal insult Secretary of Homeland Anxiety Janet Napolitano's comment Sunday that their role in the foiled Detroit airliner bombing wasn't clear but would be investigated. Yesterday, al Qaeda's ascendant franchise in the Arabian peninsula saved Secretary Napolitano the trouble of plowing through all the layers of the national-security bureaucracy for an answer. The terrorist organization put out a pointed statement not only claiming responsibility but also mocking the U.S.'s ability to stop them. Umar Farouk Abdulmutallab, they said, "dealt a huge blow to the myth of American and global intelligence services...