Hello; The problem with many of the cruise ships is they use cheap labour and poorly trained crews. I mean they aren't even owned by shipping lines. They are owned by entertainment and media companies. I know how these containers are pinned together at their 4 corners however I truly believe they are stacked way over a safety height on the ships. So fantastic videos. The last one, we had a historic flood in Arkansas and they came loose. It was a huge news story and they were tracked for more than 24hours before they hit that dam.