Today there was a massive 20 car pileup on a major highway. Whiteouts were blamed,with snow so thick you could not see. 2 fatalities,a tanker truck flipped and the melee ensued. The same situation occurred near here a few years ago with fog as the culprit. Heres my idea. In any situation when on a busy highway,your vision is totally impaired,immediately,big rigs,hit 4 ways,get off the gas,put on your signal,and slowly move to the right.Smaller vehicles should do the same and carefully slow down and park as far to the right as possible,off the road if neccessary. I guess my point is that if you are driving 70 miles an hour and for whatever reason you cant see anything...save a life and pull to the right .