The Fairfax County 911 Center in Virginia takes calls during Hurricane Sandy in 2012. It was relatively easy to locate callers when most people used landlines. But most 911 calls now come from cellphones, which can pinpoint a callers' location only within 100 to 300 meters. Greg E. Mathieson Sr./Mai/Landov hide caption

itoggle caption Greg E. Mathieson Sr./Mai/Landov

Broken and non-functional traffic lights hang over an intersection in Atlantic City, N.J., on Monday. Seth Wenig/AP hide caption

itoggle caption Seth Wenig/AP