Must have been going somewhere really important.
There are a lot of people in this world who have never seen snow, or at least not in person. If you're someone who comes from a place where it snows a lot, it can be difficult to explain to these people all of the many and varied ways in which it sucks to drive when it's snowing out. Ice on the roads is just one factor, and all-wheel-drive does nothing to protect you from all of the other idiots driving. Neither will it help when the sun reflects off of falling snow and completely blinds you.
This video shows an accident on the freeway that is the result of these factors coming together in one big mess of horrible winter conditions.