Earth becoming invisible to aliens (txt) 
This would be great material for a sci-fi story. "Dr Frank Drake said the phasing out of analogue transmissions from television, radio and radar was making our planet electronically invisible from outer space. ... But he said with satellites aiming much of their transmissions towards earth now virtually no radiation was escaping into outer space. He explained: 'Now the actual amount of radiation escaping is about two watts, not much more than you get from a cell phone. If this continues into the future, very soon our world will become undetectable.'"
http://www.telegraph.co.uk/science/7077464/Earth-becoming-invisible-to-aliens.html
This would be great material for a sci-fi story. "Dr Frank Drake said the phasing out of analogue transmissions from television, radio and radar was making our planet electronically invisible from outer space. ... But he said with satellites aiming much of their transmissions towards earth now virtually no radiation was escaping into outer space. He explained: 'Now the actual amount of radiation escaping is about two watts, not much more than you get from a cell phone. If this continues into the future, very soon our world will become undetectable.'"
http://www.telegraph.co.uk/science/7077464/Earth-becoming-invisible-to-aliens.html
