Wow. That's scary.
I found this paragraph to be the most disturbing, in a "WTF?!?!" sort of way:
But despite their widespread use, the drone systems are known to have security flaws. Many Reapers and Predators don’t encrypt the video they transmit to American troops on the ground. [emphasis mine] In the summer of 2009, U.S. forces discovered “days and days and hours and hours” of the drone footage on the laptops of Iraqi insurgents. A $26 piece of software allowed the militants to capture the video.
The information from military aircraft on top secret missions was not being encrypted? I'm just speechless. Yes, I know that hindsight is 20/20, but how could anyone reasonably miss the importance of encryption here?