I'm not irritated. ;-) I see exactly where you are coming from. The USDA allows given amounts of "coliform" bacteria in our foods as well as bug parts and rodent feces.
I see no way to totally avoid that short of raising ALL of your own food.
I just try not to think about it.
Except that due to the fact that we use shit as fertilizer means that it's going to be on your plant based foods as well. Bagged salad greens have killed more people than contaminated meat has.
You can't win that one. Sorry!
Raise your own veggies hydroponically so that they never have contact with dirt if you are really serious.
There are some hydroponic veggies available at the store. My favorite Boston Butter lettuce is sold that way, but it's slightly over $3.00 per head.
Whatever works for you babe... :-)
I'd prefer to avoid GMO foods too. I just don't trust them... I have too many food allergies as it is.