1. What goes up must come down; Airplanes can go up and stay up for long periods of time, but even they must come down eventually: They can land safely or they may crash, but airplanes don't just disappear.

Certainly not these days with all the powerful communication systems, radio and satellite tracking and filmless cameras which operate almost indefinitely and possess huge storage capacities.

2. I wrote about the disabling of MH370's communication system as well as the signals for GPS. The system must have been disabled or else the ground station could have called the plane.

The GPS too must have been disabled or else the flight of MH370 would have been tracked by satellites which normally provide data on all commercial flights, inclusive of data on location, kind of aircraft, flight number, departure airport and destination. But the data seems unavailable. The plane just disappeared seemingly from all screens.

3. MH370 is a Boeing 777 aircraft. It was built and equipped by Boeing. All the communications and GPS equipment must have been installed by Boeing. If they failed or have been disabled Boeing must know how it can be done.

Surely Boeing would ensure that they cannot be easily disabled as they are vital to the safety and operation of the plane.

 4. A search on the Internet reveals that Boeing in 2006 received a US patent for a system that, once activated, removes all control from pilots to automatically return a commercial airliner to a pre-determined landing location.

5. The Flightglobal.com article by John Croft, datelined Washington DC (1st December, 2006) further mentioned "The ‘uninterruptible' autopilot would be activated – either by pilot, by on board sensors, or even remotely by radio or satellite links by government agencies like the Central Intelligence Agency, if terrorists attempt to gain control of the flight deck".

Mahathir Mohamad - Former Prime Minister of Malaysia
Mahathir bin Mohamad is a Malaysian politician who was the fourth Prime Minister of Malaysia. He held the post for 22 years from 1981 to 2003, making him Malaysia's longest serving Prime Minister. His political career spanned almost 40 years.

His blog: http://chedet.cc