I was surprised to hear the problems in the European food supply system.
I do not trust the American food supply system either... It has a very low level of transparency (that is not by accident) and the problems are seen anytime there is a food scare -- it is nearly impossible to track the contaminated food back to it's source. But, after the scare, everybody forgets and goes back to assuming that the food they are eating is safe...
For myself, I am a vegetarian -- so that makes it a little easier to only "Eat those foods that grandma would recognize as food". Things such as vege's, beans, eggs, whole grains and so on... I do drink milk (which is probably loaded with hormones and all sorts of other nasty stuff) -- but you do what you can.