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[–]asg101 6 insightful - 1 fun6 insightful - 0 fun7 insightful - 1 fun -  (1 child)

The U.S. has had nearly 100% acoustic monitoring coverage of the oceans for decades.

[–]chadwickofwv 5 insightful - 1 fun5 insightful - 0 fun6 insightful - 1 fun -  (0 children)

100% accurate.

  • former US submariner