Global warming saves lives

After three snowstorms in the last week or so, the Boston area's sidewalks are pretty much impassable. (So are the streets, sometimes, but that's mainly because of the cars, not the ice.) So the trouble is that pedestrians are walking in the street, and they're getting mowed down by plow operators.

It's happened three times now, and in two of the cases the plow drivers haven't stopped. Won't someone please stop the bloodthirsty rage of snowplow drivers? Who's behind the wheel, anyway?