The disappearance of a Malaysia Airlines flight is raising plenty of questions beyond "where is it"? For instance, how, in an age of constant tracking, could it have vanished? And how could it have fallen from the sky? A look around at some of the answers being offered up:
- The Washington Post explains how it might have dropped off the grid. Radar can only reach so far. Passengers' cell phones can't necessarily connect to networks in the air. And Malaysia Airlines doesn't seem to carry WiFi. As for the maps passengers see on the backs of seats, those track planes' activity via ground stations and would probably lack any information we don't already have.