Engineers are one of the most important behind-the-scenes groups of people, and most of us just take them and their work for granted. The truth is that there can only be so many designers, and the vast majority of engineers do the unglamorous, but no less important work, of building, testing, and improving things for safety to make sure nobody gets hurt and no one has to pay for large amounts of property damages. However, when you don't hire enough skilled engineers to properly focus on safety, and do that all-important work that they do, you can end up with examples like the 10 tragic events in today's list.