A PROLIFERATION IN THE IMPLEMENTATION OF APPARENT JOINT ACTION AGREEMENTS BETWEEN VARIOUS TERRORIST GROUPS, TOGETHER WITH TACTICAL SIMILARITIES IN THE UNDERTAKINGS OF SIGNIFICANT INTERNATIONAL TERRORIST ORGANIZATIONS, SUGGESTS THAT CERTAIN TERRORISTS HAVE COME TO REALIZE THAT THEIR STRIKES ARE MORE EFFECTIVE WHEN THEY ARE COORDINATED ON AN INTERNATIONAL LEVEL. INTELLIGENCE AGENCIES IN ITALY, THE UNITED STATES, BELGIUM, AND OTHER COUNTRIES HAVE REPORTED CONNECTIONS AMONG SUCH GROUPS AS THE JAPANESE RED ARMY, THE URUGUAYAN TUPAMAROS, THE IRISH REPUBLICAN ARMY, THE TURKISH PEOPLE'S LIBERATION ARMY, THE ITALIAN RED BRIGARDE, THE ARAB BLACK SEPTEMBER GROUP, AND OTHERS. THESE CONNECTIONS INVOLVE SUCH THINGS AS SAFE HOUSE NETWORKS, ARMS SMUGGLING, AND THE CARRYING OUT OF TERRORIST ACTS BY ONE GROUP IN THE NAME OF ANOTHER. IT IS NOTED THAT TERRORIST COOPERATION AT THE INTERNATIONAL LEVEL NO LONGER IS THE EXCEPTION, AND THAT MOST TERRORIST MOVEMENTS ACTUALLY BOAST OF THEIR INTERNATIONAL CONNECTIONS. THE PERILS OF PUBLICIZING POLITICAL TERRORISM IN THE MEDIA ARE DISCUSSED, AS IS THE ADVISIBILITY OF COORDINATING THE ANTITERRORIST ACTIVITIES OF NATIONAL INTELLIGENCE SERVICES. THE SUCCESS OF SPECIAL ANTITERRORIST UNITS IN THE NETHERLANDS, ITALY, AND GREAT BRITAIN IS POINTED OUT. (LKM)