Eyes that are alert and steady. Skin that's sensitive to the touch. Arms that bend and grasp. To an unknowing observer, troops in the next-generation military might look much like today's.
But those eyes are veiled by self-assembling contact lenses that transmit text messages and take blood pressure readings. That skin is made up of nanowires laid onto flexible rubber. And the arm underneath? A prosthetic -- controlled by brain implant.
The Pentagon wants troops to be faster, stronger and more resilient. And with help from robotics, nanotechnology and neuroscience, the military's cyborg army -- from human troops to rat-bot recruits -- is getting prepped for battle.