U.S. authorities kept it for nine weeks, minutely inspected it and finally sent it back to the Soviet Union in packing cases. There was another time, in the '70s, when a Soviet submarine sank deep in the Pacific and the CIA did all it could to snatch it up. Yes, a Law of the Sea treaty, which China and most other nations have signed. I think that if your kid goes that far away from home to harass a girl in her home, and the girl gets knocked up, then saying sorry isn't too much to expect. Among other things, apologizing indicates a kind of emotional and sexual maturity.
Experts weigh in.