Amtrak says it will immediately abide by an order by federal regulators to expand use of a speed restriction system in the area of Tuesday's deadly train derailment that killed eight people and injured more than 200 others, AP reported. The Federal Railroad Administration said Saturday it wants Amtrak to put in effect the automatic train control system for northbound trains approaching the curve where the train derailed. The system is already in effect for southbound trains. The system notifies the engineer when a train is above the speed limit and automatically applies the brakes if the engineer doesn't slow the train down. -- SPA 00:43 LOCAL TIME 21:43 GMT تغريد