(ANSAmed) - ISTANBUL, JUNE 7 - Al Qaeda - by way of its various branches (AQIM in the Maghreb, Boko Haram in Nigeria, Shabaab in Somalia and AQAP in the Arabian Peninsula) - remains the ''main threat'' at the global level as concerns terrorism, despite the success achieved over the past few months against the leadership levels of the shadowy fundamentalist terror network. It is the number one enemy that the international community must deal with, according to the Global Counterterrorism Forum (GCTF) in Istanbul, while in several countries endogenous terrorist groups are coming to the fore, both ''lone wolves'' and through - as underscored by Italian Foriegn Minister Giulio Terzi - ''the resurgence of anarchic transnational extremism, fostered by the social consequences of the global economic crisis''. After the joining of Tunisia, the GCTF now consists of 32 member countries, both Western ones and ones from the Middle East and Asia, which are aware - Terzi noted - of the ''potential for global destabilisation'' that the phenomenon holds. The threat represented by Al Qaeda is still real, and has been extended geographically despite the successes achieved in the struggle against the upper ranks of the network, including the killing of Osama Bin Laden and several of his lieutenants, underscored US Secretary of State Hillary Clinton, co-chair of the Istanbul forum alongside Turkish Foreign Minister Ahmet Davutoglu. In Terzi's view, AQIM, Boko Haram, Shabaab and AQAP ''have become channels for the spread of violence from the Sahel to the Horn of Africa, all the way to the shores of the Mediterranean and the Red Sea,'' fostered by instability and piracy, the hostage-taking industry, and illegal drugs and weapons trafficking. Over the past decade, across the entire world 120,000 people have been arrested due to suspected ties with terrorism and another 35,000 sentenced, noted Clinton. ''Our citizens are safer,'' but ''despite the progress achieved, the danger remains urgent and undeniable.'' Today the Global Counterterrorism Forum gave its seal of approval to the Memorandum of Rome on the best practices that the 32 member states pledge to adopt to prevent jails from becoming a possible ''incubator'' of terrorism. The aim is to prevent - in part through specific rehabilitation - that prisons become a ''safe refuge'' for the terrorists arrested. ''We need,'' Terzi said, ''to prevent the spread of terrorism, including through terrorist detainees.'' (ANSAmed).