Terrorism, Surveillance, and Radio TransmittersSUMMARY: This article is an introduction to the discussion of different types of surveillance equipment. The paper focuses on different intelligence agencies around the world that use surveillance equipment, the types of information they need, and how they collect that information. There is also discussion of the most common type of surveillance equipment used by intelligence agencies, the radio transmitter. The transmitter is described in detail and its countless surveillance uses are illustrated. Finally, the ethical question of the use of surveillance devices that violate the privacy of the individual is addressed. The topic of our presentation was surveillance, but in order to better understand the need for surveillance in today's world, it is necessary to study the role of intelligence agencies, which are one of the main users of monitoring equipment. This article will analyze the purpose of intelligence organizations, examine the types of information these agencies seek, and identify the major international intelligence agencies. Additionally, the most common type of surveillance equipment used by intelligence agencies around the world, the radio transmitter, will be examined and explained. In a dissimilar world, with nations having many different political, economic and social agendas, information is truly a primary element of nation power. Thus, intelligence agencies have developed in all major countries to “collect and evaluate information with the aim of uncovering the capabilities and intentions of their rivals”.[1] In the United States, the importance of this type of information is illustrated by Executive Order No. . 12333 which states that the nation's intelligence system must "provide the President with necessary information on which to base decisions concerning the conduct and development of foreign, defense, and economic policy, as well as the protection of the national interests of the United States against foreign security threats. all necessary legal means. »[2] Therefore, the collection of intelligence information is of paramount importance for the survival of nations. The sources of this intelligence information come from two broad categories: public and secret. When most people think of intelligence services, they automatically think of James Bond films and other clandestine spy missions. However, more than 80% of the information collected by these intelligence services comes from public sources such as newspapers, media, government documents, embassies and diplomats. Only about 20% of information comes from secret sources, but that 20% of information often turns out to be the most valuable..