In the past month there have been repeated reports of air traffic controllers falling asleep while on the job. Three to be exact and these events appear to be happening closer in proximity. Although I lack the proof of any magnetic field changes, many official reports of changes to Earths magnetic field have been made. Airports runways are aligned to magnetic points and if they change then airport navigation becomes unreliable. Sleepy air traffic controllers happens to be a great cover up of the effects an airport might experience in the event of a destabilizing magnetic field.
Unrelated February news report of magnetic field changes. http://www.youtube.com/watch?v=gtOW2c1eFqc