The Soviet Union began to jam Western radio broadcasts to the Soviet Union in 1948. Jamming has continued to be a problem since then, though not a constant one; over the years, the level of jamming has varied in relation to East-West tensions but more particularly in consonance with internal and external crises. As the post-war international debate concerned with virtually all aspects of modem communications has evolved, jamming has become one focus of the free flow of information- national sovereignty debate. Though seldom completely effective, jamming is a sufficiently large-scale and controversial practice to warrant international attention today, as the resumption of jamming by the Soviet Union in 1980 demonstrates.
Rochelle B. Price,
Jamming and the Law of International Communications,
Mich. J. Int'l L.
Available at: https://repository.law.umich.edu/mjil/vol5/iss1/19