Joan Vennochi has mixed feelings about Partners Healthcare. Sure, it isn't really evil -- it does a lot of good things -- but it is, by comparison, big and domineering, to the overall detriment of smaller, less profitable hospitals. And, it's a non-profit that generates big profits surpluses.

Her point: Is health care too important to be left to market forces?

I'm not sure what the alternative would be. If it's the Amtrak model, I think I'd just leave things as they are.