The U.S. Marines are testing a pocket-sized helicopter drone

Computerworld:  The U.S. Marine Corps is testing a pocket-sized drone that can deliver live video feeds from three cameras and is small enough that it's almost invisible from the ground.

The Black Hornet PD-100 can stay aloft for 25 minutes and has a range of 1.6 km (1 mile). That means Marines can use it for surveillance far beyond their current position.

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