Well,the "Olaf's" are generally considered much safer and more accomplished seamen than those from other countries. For example if this were an Indonesian cruise ship the head line might have read; "all passengers feared lost after collision with iceberg, except for the crew."
Except Norwegian Cruiselines are Norwegian.
Except Norwegian Cruiselines are Norwegian. (Actually I just doublechecked... I may have been led to a false presumption from another comment... It’s not Norwegian Cruise lines, but A Norwegian cruise line, isn’t it?