That's called a snow plow,, you can even get one that bends in the middle making a V plow.
I was thinking of maybe something more smiley and nice, that wouldn't offend liberals by being intimidating like the cold steel of a snow plow. What they used to put on trains I believe they called a cow catcher or cattle guard seems like a good pattern, because if it's made for cattle it should work well on liberals.
The snow plow is definitely a good idea though if you don't have a cattle guard, especially the type that can have a V shape. If I lived in an area infested by liberals and I had access to one I would have it on my pickup at all times.
The people scoops in the movie
Soylent Green look like a good idea too, if you have a big enough truck, and another truck to dump them into.
[edit: After thinking about it some more, a snow plow is a really good idea, since it's designed to remove dangerous masses of snowflakes from roads; this makes it ideal for liberal snowflakes on the road. But it should have something like a smile-face painted on it, so the precious snowflakes don't feel so intimidated by it; we don't want them being traumatized.]
