Video: Pentagon's robotic pack mule follows orders

For years, DARPA (the Defense Advanced Research Projects Agency) has heavily invested in the development of robots for various military missions.   

Robot 'pack mule' follows soldiers' orders

DARPA’s been showing off two robotic 'pack mule' prototypes developed as part of its Legged Squad Support System (LS3) program.

This 'bot is a military pack mule

The Pentagon has developed a prototype robotic "pack mule" capable of standing up, lying down and following troops as it carries a cool 400 pounds of military gear.