The similiarities between a maser and a laser is that the radiation originating from these devices are coherent, by this we mean the beam does not spread apart like ordinary radiation, but stays columinated like a flashlight. Secondly, the radiation is monochromatic; namely, one given frequency with an intense beam of radiation. The difference being in a maser this is microwave radiation, while a laser is a host of other EM frequencies.

The interesting feature of microwave radiation is it can intereact "easily" with electronic circuitry and cause havoc in the transmission of electronic signals.

If these masers are based in satellites they can be pointed from space at airborne vehicles and cause havoc in their guidance systems and other control systems, which control the vehicles direction in space. This could be an airplane, a ballistic missile, etc.

If the maser is targeted on a plane, the pilot could easily loose control of flying the vehicle. He would not be effected by the radiation, and if you were an observer on ground and watched this vehicle via radar you would not see the interaction of the maser's radiation with the plane but only observe the plane crashing and/or getting out of control.

When the plane is just about to crash. The maser is turned off giving the controls back to the pilot. However it is too late for the pilot to do anything. Also the flight recorder would not show any use of a maser.

This is the ideal way to down a plane from the sky and nobody will know. Does this occur? I think it does? Especially in the last series of plane crashes? Does these happening occur for the National Security of the USA...The answer is no.

Do we have a weapon system like this? I say yes. It is an antiballistic weapon system. This has the same effect on ballistic missiles... and I applaud a system like this for "this use".

But I do not applaud this system to be missused by some powerful people to silence some other people. This is plane and simple murder...not national security...but selfish security.

Finally I would like to think their are some powerful people who will rectify these wrongs. So their gradchildren can live in a better world than we live in.