Were they relying solely on the technology, or did they have human lookouts posted as well?
It could be a lesson not to rely too much on gadgets.
If that is the case (I don't know what it is like now) then someone should swing. I would be appalled to learn they dispensed with most of the traditional watches, maybe keeping one aft and one forward for a total of two instead of four or more!) And what if one of those two fell asleep...especially the one on the bow????? This is not unheard of. When I was on the USS JFK back in the Seventies, there was a watch on the port quarter one night around 0200-0300, and he fell asleep on watch. (We all know what happens to people who are caught sleeping on watch, I doubt that has changed.) Anyway, a couple of his buddies went down to say hello to him, and saw he was asleep, sound powered phones on, slumped in his chair. One of his buddies silently crawled over, and tied the shoelaces to his boondockers together. He retreated to the hatch with his giggling buddies and said "Man Overboard! Man Overboard!" It had the desired effect, the sleeping sailor leaped to his feet and promptly fell flat on his face, to their hilarity. Unfortunately someone on a catwalk above them raised the alarm, resulting in the ship (and by necessity the entire carrier battle group as it was) coming awake, each ship running its own "Man Overboard", with probably 8,000+ men running up and down ladders, etc. I heard they court marshaled those guys. It is kind of funny to tell in retrospect, but at the time...hoo boy.