Machines are Nice

Machines are nice, because they wont question the order to kill you:
http://www.youtube.com/watch?v=FFGfq0pRczY

Expect iron policeman at every corner. And the only way to get him would be a heavy explosion, because machines are immune to bullets.

>>2
http://en.wikipedia.org/wiki/Faraday_cage

moreover, modern robots are autonomous and capable of using other signaling, besides radio, so breaking radio transmission wont affect them.