Attention Boeing, US Department of Defense, and everyone else: Please stop automating your planes, armies, etc and connecting them to computer networks. Their security will fail and you will lose control of those assets, with dire consequences.
Seriously, why can't everyone see this? Was Lockheed being hacked via RSA not a clear enough sign?
It's US military's conversion to drones that worries me the most in this vein. There's some seriously asymmetric warfare coming.