CNN.com - Tanzania train crash 'kills 100' - June 24, 2002

The engineer thought that the brakes were going, so he stopped the train. Then he decided to back it up, only to find that the brakes had in fact gone, and it rolled 20 miles before hitting a freight train... I've seen footage of these passenger trains, and they just look unsafe. I wonder how old this one was. A lot of third world countries use things that might date back to the colonial era.