Reviews four countries' domestic intelligence services to assess whether the creation of such an agency in the United States, apart from the Federal Bureau of Investigation, would be beneficial. (PW); Since the September 11, 2001, attacks, critics have charged that the Federal Bureau of Investigation (FBI), while qualified to investigate terrorist incidents after the fact, is not wel equipped enough to adequately gather and a assess information to prevent attacks. Given the bureau's law enforcement and prosecutorial cultural, many believe that the burden of countering terrorism, the FBI's main focus now, in addition to the load of taking on "ordinary" crime, may be too much. To better inform debate, researchers analyzed the domestic security structures of four allied countries-the United Kingdom, France, Canada, and Australia-weighing both their positive and negative aspects.