The US Navy isn't capable of rescue missions like that, the US Coast Guard is. The nearest US Navy vessel were still probably hours away, even if they were equipped. So much reaching here to find an impossible task when you have 2-3 hours to operate the rescue. By the time a US ship arrived everyone would be dead. Not to mention that requires Greece and Italy to ask for help.

One has to love how over the last decade or so, we were all convinced that all sea going vessels do not have the obligation to help others in distress. Because they absolutely do.

Also, what people also forget, the Mediterranean is under almost comlkete surveillance. So no big surprise if a vessel goes down, most of the time authorities knew of said vessel before.

You have an obligation, that doesn't mean you can reach it in time or that you're equipped as US battleship for such a rescue. Big difference.