Not only that, but there needs to be some way to detect the bounced beam -- implying a ridiculous degree of accuracy in the placement of the satellite, the smoo

Not only that, but there needs to be some way to detect the bounced beam -- implying a ridiculous degree of accuracy in the placement of the satellite, the smoothness of the glass, and the strength of the laser. http://en.wikipedia.org/wiki/Laser_microphone http://en.wikipedia.org/wiki/Laser_microphone