President Obama got a look at V2X in July when he visited a Federal Highway Administration research center in McLean. In a driving simulator, he saw how V2X transmitters let cars talk to the world around them and warn drivers of trouble ahead — giving them precious time to react if, for example, an oncoming vehicle appears to be about to run a red light or another is coming around a blind corner. This isn’t the stuff of science fiction. It’s engineering reality. And we’re ready to move it from the lab to the nation’s roads.