That's my point. They are blind, and we need better charts. What I don't hear being brought up are the
Low Frequency Active Sonar arrays and whales... remember that the US Navy has been harassed by activists trying to block them from using platforms with high-powered (200+ deciBel) sonar to improve the charts.
Seems to me that while this accident might not have been directly prevented by an unharassed program, it certainly points to a need for the LFAS program.
(BTW, link provided for reader convenience...not sure about the info on it--it's Federation of American Scientists.)