After buying [1] multiple DARPA Challange [2] winning Robotics Companies, Google is becoming more and more a reason to worry about.

The biggest Data mining Company in the World is now responsible for building Terminator like Robots...

The most advanced Company in this field is Boston Dynamics

From their Homage:

Boston Dynamics is wholly owned subsidiary of Google, Inc.[...] Boston Dynamics has an extraordinary technical team of engineers and scientists. The team seamlessly combines advanced analytical thinking with boots-in-the-mud practicality.

Boston Dynamics main funding comes from US Government outlets including :

US Defence Advanced Research Projects Agency (Darpa),

US army, 

navy and marine corps.

Here are the scariest Examples of the coming Government controlled Robotic Nightmare:

Cheetah Robot runs 28.3 mph; a bit faster than Usain Bolt

Meet ATLAS!

Petman

Relax Guys and remember : "Dont be Evil "is Google`s slogan

They will handle this well, like they do Privacy.

Source :

[1]http://www.forbes.com/sites/roberthof/2013/12/14/what-the-heck-will-google-do-with-these-scary-military-robots/#2bb1a90057e7

[2]http://www.darpa.mil/program/darpa-robotics-challenge

http://spectrum.ieee.org/automaton/robotics/humanoids/schaft-robot-company-bought-by-google-darpa-robotics-challenge-winner

http://www.nytimes.com/2013/12/14/technology/google-adds-to-its-menagerie-of-robots.html?pagewanted=all&_r=2&