Originally Posted by Steve B.

There was a story many years back of a Lear jet that disappeared around Christmas time while attempting to fly into Lebanon, NH to PU a family to fly them on vacation. Plane never made it and it was a good 2 years before they found it NE of Lebanon in deep woods on a hillside. The NTSB investigation indicated the pilots were relying too much on a newly installed GPS that they had very little familiarity with in flight conditions, they subsequently lost track of position and altitude, flew into a mountain at 250 MPH. And there have been countless stories of motorists that drive up an Oregon dirt road (or something similar) into snow and get stuck, while following the directions Google Maps is giving them. A lot of people have no idea how it all works and why it sometimes doesn't, including pilots, who should know better.