I had a really odd dream once, I was out side a relatives house looking down the street to the bottom of the road. It was night time, and the military had condoned of the area.

They had a vehicle parked at the bottom of the road and a large robotic device was sat on top of it with bright piecing blue lights. It was some what like a spider but silvery and metallic. It stood up and crawled off the back of the vehicle.

I thought "the military are unveiling and using robotic weaponry now", the thing was huge, and they were using it to round people up out side of their homes or just plain shot them if they didn't surrender or comply.