Where does your food come from?

So, a bunch of people recently had salmonellosis. The FDA thinks that the bugs are from tomatoes, although they are starting to change their minds a little. Problem is, no-one knows where the tomatoes came from. Why? Because tomatoes are imported from god-knows-where to US distribution centers, where they're repacked and sent to stores, etc. And what does the FDA say about this? Let's track the tomatoes better. What do I say about this? Let's get our tomatoes from a farm. Let's have them picked ripe, not green, let's have them go from the vine, to the picker's hands, to a box, to my doorstep.

Now, before you suggest that I get off (or fall off) my high horse, know that I buy fast food and don't always eat at restaurants that grow their own veggies in the backyard. But, in an ideal world, I wouldn't (eat fast food) and would (eat as locally as possible). Why does the government's answer to all of these food contamination problems involve even more money, oversight, and centralization, when so many problems can be solved by going smaller?