I never do. I figure it should be okay. I know there was the issue w/ the spinach that time, but that seemed to be a fluke. Really, it seems like everything has the propensity to make you sick, cause cancer, etc. It's kind of crazy.
and even if you washed that spinach, that type of bacteria is "IN" the spinach and can't be washed away. Washing it would have gotten you nowhere.
I'm talking about the pre-packaged salad mix. Most of them has "cold water washed" printed on the bag. No matter what they say I still wash mine before eating. I just wanted to see if I'm a paranoid or what