On 09/10/2018 07:55, Brian Gaff wrote:
You would have thought so. It is a worry though that in this day an age you
can lose a large aircraft for so long considering all the sophisticated
earth monitoring systems we have today looking down from space every day.
Brian

Bill Bryson has an interesting example of something fairly large that
went down some time ago in the Appalachian forests and has never been
found. But I agree, there is more scanning these days.