This is about human error, not malfeasance. A more detailed explanation is in this news report. http://www.washingtonpost.com/local/trafficandcommuting/report

This is about human error, not malfeasance. A more detailed explanation is in this news report. http://www.washingtonpost.com/local/trafficandcommuting/report-metro-derailment-occurred-after-technician-disregarded-rail-defect/2015/08/28/d714ccbe-4d86-11e5-84df-923b3ef1a64b_story.html http://www.washingtonpost.com/local/trafficandcommuting/repo...