Predator drones for surveilliance and instant intervention on those who don't comply within 10 years, maybe 5.
Who knows what 50 years will bring? I don't think I want to know.
Wow, this thread has lived a long time. That post of mine you responded to is two and a half years old.
Ever heard of “robocup”? It’s a world wide competition involving robots playing soccer. These are not remote controlled robots. These are fully autonomous robots searching out the soccer ball, aiming, kicking, passing, blocking, and scoring goals. They THINK FOR THEMSELVES!
check this out:
http://www.youtube.com/watch?v=vJaOcv81QuQ
They are slow and clumsy, but they are actually functional. They fall down a lot but they usually get themselves back up and back in the game.