CNN Erin Burnett OutFront March 19, 2014 23:38:00
>> exactly. primary radar lost around 100, 150 miles. after 200 miles, what air traffic controllers rely what called a synthetic air picture. that is built up using bits of information, the first is acars, acars will send inform was to the air line, it will send things like burn rates and fuel rates and all the rest to have but also a gps position much the other way air traffic is worked sought a procedural piece. they will deconflict by biff givening each airlinary specific mack number to fly, different mack number, procedurally separated through that and through altitude. that's wait they bu...