Yup. My husband was stuck for 6.5 hours in that D.C. traffic. Yes, it's an inch of snow, mostly ice but that's all it takes when there's too many damn commuters for the area. The traffic without any weather issues at all is bad enough. I drive plenty slow, but that doesn't mean a damn thing if everything is at a standstill because someone slid out.
I remember when I was in law school and living in Newton, MA my car slid down an icy hill and right into a mail truck which had also slid down the hill. That sucked. We were probably going less than 5 miles an hour but the neighborhood was hilly.
Sure there are some storms with icy conditions that make it hard for anyone to drive, but I've driven in both Texas and Georgia when there was less than 2 inches of powder that was easy to drive in. Almost no one knew how to drive in it, and people were sliding all over the place. There are plenty of people up north that can't drive in the snow, but down south, it is the majority.
Here's a few rules of thumb to drive in the snow:
1. If you don't have a "feel" for driving in show, go out in an empty parking lot and mess around for a while until you develop a feel for it. It shouldn't take long.
2. If the snow is blowing across the road, you don't need to moderate your speed too much. The instant it starts sticking you must slow down significantly. This is where a lot of people "lose it".
3. Drive slow, and even slower on turns and hills.
4. If you can't downshift, break early and never break hard or while you're turning.
5. If you can disable your ABS, do so.
6. If you start to slide, point the front tires in the direction in which you are sliding. Your tires will gain traction MUCH more quickly.
7. Try to maintain momentum when going up a steep hill.
8. Be wary changing lanes on the highway when bare tar lanes are separated by snow. As soon as one side of your tires hit the snow covered part, your car will start to lurch in that direction.