As the world reels from the bombings in Madrid, it is important to remember that the jihad continues in America as well.* The FBI and Coast Gaurd announced March 11 that nine members of the Merchant Marine may have links to terrorist groups. This is the fruit of Operation Drydock, an anti-terror investigation that has lasted more than a year. These efforts, while laudable, only underscore the fact that terrorists have already begun to try to take advantage of the vulnerabilities of U.S.seaports.* The same day, three members of the "Virginia jihad network" were found guilty of conspiracy. Masoud Khan,...