On Tuesday two German commuter trains crashed head on. Nine people people died instantly and one more died in a hospital later. Experts still don’t know how it happened with all the security systems. German railway systems are known for being some of the safest in the world. These particular trains were equipped with sonar, sensing all the other trains allowed to be on that track and what direction they are heading. If it realized that it was going to get in a crash, it braked automatically. In this collision that system did not kick in for unknown reasons.
It took hours to rescue all 200 survivors. Luckily it was a holiday weekend so not many people were aboard. This did not stop the engineers from dying.