Send a comment on this item to LII: Send a comment on this item to LII staff, who on weekdays will usually reply within 24 hours. SURTASS LFA "The Surveillance Towed Array Sensor System (SURTASS) Low Frequency Active (LFA) is a new sonar" that, according to the Navy Fleet Commanders in Chief "is a crucial element of the Navy's anti-submarine warfare (ASW) force and is an asset required for our national security." This site contains a description of SURTASS, the U.S. Navy's research, findings, and opinions about the uses of LFA sonar for defense, and its impact on marine mammals. Includes a glossary. http://www.surtass-lfa-eis.com/ Asterisk * indicates required field. Your Name Your Email Address * We will not sell or provide your email address to anyone else. Comment * Enter the verification code as it is shown in the box below. This helps prevent automated submissions. *