ABCNews.go.com reported that federal regulators are concerned about the lack of progress from NYC commuter rail in implementing potentially lifesaving Positive Train Control (PTC) technology.  “The nation’s three busiest commuter railroads — which together serve nearly 1 million riders in the New York City area each day — continue to lag behind their smaller West Coast counterparts in installing sophisticated train-control technology that’s seen as an antidote to crashes involving speeding and other human factors…” Read the complete article here.