Does this make anyone nervous?

From an article in the April edition of COTS journal.

The article is about UAVs (unmanned aerial vehicles) in development by the military. The following line caught my attention:

As the largest UAV yet built in the UK, its computing payload will be able to autonomously control the aircraft to taxi, take off, and navigate its way to a search area while reacting to any threats or other events. It will then route its way around the search area in whichever way it wants to, locate the target, and then use its sensor system to transmit a series of images and views back to the operator to confirm it is the target to be attacked. Then, once it has been authorized to do so, it autonomously attacks that target, routes its way back home, lands and taxies back. Ground testing is expected to take place in early 2009, with the first flight trials taking place in 2010.

Seen any of those Terminator movies? What's the worst that could happen?