AircraftNews.Com

When you think about it, it makes sense in a way. If you are a terrorist you may be a bit short of manufacturing power and money especially when compared to the West and so it makes sense that you find a way to take over control of the UAVs that are shooting you up.
It may be cynical but to me the recent claim by the Military that they have plugged a security breach tells me that this is possible and will happen. What a Christmas present for the infidels that would be! Let the good old USofA build them and then take them over. A good bit of spying would help. I wonder how hard it would be.
Iraqi insurgents have reportedly intercepted live video feeds from the U.S. military’s Predator drones using a $25.95 Windows application that allows them to track the pilotless aircraft undetected.

Hackers working with Iraqi militants were able to determine which areas of the country were under surveillance by the U.S. military, The Wall Street Journal reported Thursday, adding that video feeds from drones in Afghanistan also appear to have been compromised.

Meanwhile, a senior Air Force officer said Wednesday that a wave of new surveillance aircraft, both manned and unmanned, were being deployed to Afghanistan to bolster ‘eyes in the sky’ protection for the influx of American troops ordered by President Obama.

This apparent security breach, which had been known in military and intelligence circles to be possible, arose because the Predator unmanned aerial vehicles do not use encryption in the final link to their operators on the ground.
From http://www.daemonnews.org/security/1509-predator-drones-hacked-in-iraq-operations.html