Human error. The Captain will bear responsibility and it will likely cost him his career.
Maybe so, maybe no.
I was a surface warfare officer during my active duty days and spent
copious watch time on the bridge of a carrier. We were very careful,
as anything happening to an AC is literally a short call from POTUS'
ear. (falls under the category of major US asset)
Stupid stuff happens occasionally...... we'd be here all day; I could
tell you stories. (probably not though)
There will be what is called a "board of inquiry," in which the details
of what happened will be hashed out for the official record. In reality,
we are fixing blame, under the guise of the public's right to know.
("there will be an accounting"...... in the language of the GAO)
In all likelihood, if there is any blame on the actions of the bridge
watch team that was on duty, this will get ugly for them and then
also ugly for the skipper, by extension, since he has ultimate
responsibility for his ship, and the watch is merely his trusted
"proxy" when he's not physically on the bridge. (that's the real
reason an Officer Of the Deck goes through a board to receive
his qualification as OOD and then as a Surface Warfare Officer)
We had a saying about maritime disaster- "collision at sea ruins
your whole day."
If you have any questions, feel free to ask..... this subject is in
my "wheelhouse" since I was in the USN for 25 years.