CAPT Brian Taddiken, USN and LT Kirsten Krock, USN, discuss how 66 years ago one of the Navy’s most secretive communities began. Its members went by the code word SOSUS, which means “Sound Surveillance System.” A new front line in the Cold War, they had one mission: FIND SUBMARINES.
More here: https://www.usni.org/magazines/naval-history-magazine/2021/february/66-years-undersea-surveillance