Just in time for Angel Falls..
when you thought you might be able to outrun the Cougar20-H surveillance robot that can detect human breathing, developer TiaLinx has launched a flying version that can do the same.
The Phoenix40-A is a mini-UAV with six rotors that can detect motion and breathing when searching for hidden people.
here:
http://news.cnet.com/8301-17938_105-20045941-1.html