Were warning signs ignored? Things to know about this week’s testimony on the Titan sub disaster

Last year, five people hoping to view the Titanic wreckage died when their submersible imploded in the Atlantic Ocean

​Last year, five people hoping to view the Titanic wreckage died when their submersible imploded in the Atlantic Ocean Last year, five people hoping to view the Titanic wreckage died when their submersible imploded in the Atlantic Ocean US