Ocean and marine mammals are being disturbed by a U.S. military program that, if approved, will soon be bombarding millions of whales and dolphins around the world with intense noise. The Surveillance Towed Array Sonar System (SURTASS) Low Frequency Active Sonar is a powerful system the Navy seeks to deploy in 80 percent of the world’s oceans. SURTASS is used to listen for noises produced by submarines, so it is called a passive sonar. Deafening noise from the LFA system will interfere with the vital biological activities of marine mammals and could push entire populations over the brink into extinction. Michael Jasney of the Natural Resources Defense Council will discuss this topic along with James Twyman, author of the book Emissary of Light.