Actually, according to the discovery channel, the earth's poles are
weakening, and will ultimately reverse polarity...

Pilots everywhere are going to become very confused very quickly.

Most, though, will be most horrified when their toilet bowl flushes the wrong
way.


Stealth Pilot wrote in
:

they are pretty reliable in a pinch since the earth's magnetic field
doesnt have an off switch :-)

Stealth Pilot