Terminator Salvation is the working title of the fourth Terminator movie, directed by McG and starring Christian Bale in the lead role as John Connor and Sma Worthington as a cyborg who strongly believes to be human. Here below a triptic poster of Terminator 4:

(Click on the poster to enlarge it.)
From left to right: Christian Bale as John Connor, Terminator robot, Sam Worthington as Marcus Wright

If Skynet (the evil network aiming at annihilating mankind) was to become real nowadays, it wouldn’t be based on military installations, it would rather rise from the civilian cloud that’s currently building up. And rather than Skynet, we would probably call it Google AI…
;-P